# Baby and children > Preloved baby clothes, toys and kit. Parents buy in bundles by age, so sort by size and check every item against safety recalls. Children grow in bursts, so parents buy their clothes by age band and often as a bundle. A bag of ten vests in 3 to 6 months sells faster than ten separate listings, and it costs you one label instead of ten. Prams, high chairs, bouncers and baby carriers fetch good money second hand, but they are bulky to post and some items carry safety questions a buyer will ask. Sell the soft goods by post and offer collection on the big kit. Keep a list of what you will not sell. Used car seats with an unknown history and used cot mattresses are the two that UK safety charities advise parents against buying second hand. ## How to pack it - Fold the clothes flat and seal them in a clear bag. - Slide the bag into a grey mailing bag, or box toys and equipment with void fill. - Weigh it and pick the parcel size that matches. Avoid: Posting bulky prams and cots in a bag. Box them, or offer collection. - **[Grey mailing bags, 10 x 14 in, 100 pack](https://sellersetups.com/product/grey-mailing-bags)** (£8 to £13): Self-seal poly bags add almost no weight, so a single garment posts as a small parcel. You can't see through the opaque grey film, and a label lies flat on it. - **[Grip seal bags, 100 × 150 mm, 100 pack](https://sellersetups.com/product/resealable-cable-bags)** (£4 to £8): A coiled charger, a set of earrings or a bag of spare game pieces fits a 100 × 150 mm grip seal bag, and you can write the stock code on the white panel. Pick a larger size if you bag laptop power bricks or whole controllers. - **[Double-wall boxes, 18 x 12 x 8 in, 15 pack](https://sellersetups.com/product/double-wall-boxes)** (£22 to £34): Double-wall board resists crushing better than single-wall, so your boxed trainers arrive intact. - **[Honeycomb paper wrap, 100 m roll](https://sellersetups.com/product/paper-void-fill)** (£18 to £28): Stretches into a cushioned mesh and goes in the paper recycling. Choose it if low-plastic packaging is part of your shop's pitch. - **[100 x 150 mm thermal labels, 500 fanfold](https://sellersetups.com/product/thermal-labels-fanfold)** (£12 to £18): Fanfold stacks feed flat behind the printer and hold more labels than a roll. 100 x 150 mm matches the label size UK couriers and marketplaces print. ## Postage per order - Royal Mail 2nd Class Medium Parcel: £7.00 to £13.70. Shoe boxes, homeware and bulky parcels up to 20 kg that don’t need tracking. - InPost locker to locker, medium: £2.59. Shoe boxes, books and bags up to 19 cm deep, sent between lockers when the buyer picks a locker. - Royal Mail Tracked 48 Medium Parcel: £5.70 to £12.25. Trainers, homeware and electronics up to 20 kg, tracked and cheaper than untracked 2nd Class. ## Sort by age band before you list anything Clothes come in labelled age bands: newborn, 0 to 3 months, 3 to 6 months and on up to the school years. Sort into crates by band the moment stock comes in, then by season. You can then write each title straight from the crate: "Boys' bundle, 6 to 9 months, autumn, 14 items". Write the brand and size from the label, not from memory. Sizes run differently between shops, so a buyer comparing two vests wants the label in the photo too. ## Wash, check and fold for a clean first impression Wash everything, even items that look clean, and use an unscented detergent. Many parents of newborns avoid strong fragrance. Check each piece under daylight for milk and food stains, which often show up yellow after storage. Fold bundles neatly and photograph them stacked, then fanned out, so the buyer can count the pieces. Note any marks in the description and photograph them close up. A buyer who finds an unmentioned stain will open a return. ## Safety checks for toys and baby equipment Search the item name on the government's product recall list before you list a branded toy, pram, bouncer or high chair. Recalls on baby kit happen, and a parent who finds one after buying from you will rightly want a refund. For toys sold for young children, check for loose small parts, button batteries that a child could reach, and cracked plastic. A toy with a loose battery cover is a hazard: tape won't fix it, so leave it out. Keep car seats and used cot mattresses out of your stock unless you can stand behind their history. Prams, travel cots and high chairs need every strap, buckle and brake shown working in the photos or on camera. ## Selling bundles live on Whatnot Baby bundles suit a live show. Hold each item up, call out the size and brand, and drop it in a clear bag on camera. Buyers bidding on a bundle want to watch you count it. Pre-bag your lots before the show with a numbered card in each, and keep a tidy table so items from one lot don't drift into the next. Run a few low starting bids early to fill the room, and save the branded coats and snowsuits for the middle of the show. ## Posting soft goods and bulky kit Clothes bundles go in a grey mailing bag, folded flat, with the item in a clear bag first in case the outer bag gets wet. Weigh each bundle: a big winter lot can tip from a small parcel into a medium one. Bulky equipment needs a box, plenty of void fill and a courier that takes larger parcels. Compare Royal Mail, DPD and Parcelforce on a comparison site, with Evri as the cheaper option for lighter boxes. Check the size limits for each service before you quote a postage price. Collection works well for prams, cots and play gyms. State the collection area in the listing title and ask the buyer to check the item before paying in person. ## Pricing preloved children's items Search sold listings, not live ones, for the same brand and size. High street basics sell cheaply, often by the bundle, and premium children's brands hold their value far better. Price equipment against its new price and its age. Parents want to know the year of manufacture on prams and car seats, and the label on the frame usually shows it. ## Common mistakes - Listing a car seat or cot mattress with an unknown history puts a child at risk, so leave both out of your stock. - Selling a branded toy or pram without checking the recall list can land a parent with recalled kit, so search it first. - Sending clothes with an unmentioned stain leads to returns and poor feedback, so check under daylight and photograph any mark. - Mixing age bands in one bundle confuses buyers, so keep every bundle to a single size range. - Quoting Royal Mail postage on a pushchair box that is over the size limit means paying the difference yourself, so measure it before you list. ## Setups - [Baby clothes bundle setup for Vinted and eBay](https://sellersetups.com/setups/baby-clothes-age-band-bundles): Eight tubs labelled by age band, a rail for coats and snowsuits, and grey mailers that take a 3 to 6 months bundle in one parcel. ## Guides - [Kids' clothes bundles and baby items not to resell](https://sellersetups.com/guides/baby-items-you-should-not-resell): How to build kids' clothes bundles that sell, and the baby items safety charities tell parents not to buy second-hand: car seats, cot mattresses and more. - [How to post bulky items: bikes, golf clubs, prams](https://sellersetups.com/guides/how-to-post-bulky-items): Courier size limits for long and heavy parcels, how to work out length plus girth, and how to pack a bike, a golf bag, gym weights and a pram. - [How to sell on Vinted UK: first listing to sale](https://sellersetups.com/guides/how-to-sell-on-vinted-uk): A beginner's route through Vinted UK: fees, photos, your first listing, the 5 day posting deadline, getting paid and the HMRC reporting line. ## Questions ### Can I sell a second-hand car seat? You can legally sell one, but road safety charities advise parents against buying a used seat unless they know its full history, because crash damage can be invisible. If you sell one, state its age, the approval standard on the label and that it has never been in a collision, and only list a seat you can vouch for. The simplest route is to leave car seats out of your stock. ### Should I sell a used cot mattress? The Lullaby Trust advises using a new mattress for each baby, or one from your own family that is firm, flat, clean and waterproof. Most second-hand buyers know this, so used mattresses sell poorly. Sell the cot frame and leave the mattress out. ### Do toy safety rules apply to second-hand toys? Toys sold in the UK need to be safe, and a toy recalled for a choking or magnet hazard should not be resold. Check the government's product recall list before you list branded toys, and check small parts on anything sold for under threes. For the detail on what applies to you, read the Office for Product Safety and Standards guidance. ### Do clothes bundles sell better than single items? For everyday baby clothes, yes. Group by size and season, so a buyer can kit out one stage of growth in one order. Keep single listings for named brands, coats, snowsuits and anything new with tags. ### Which platform suits baby clothes? Vinted is where a lot of UK parents shop for children's clothes, and buyers there pay the postage. eBay suits bundles and branded equipment. Whatnot has a Baby and Children category for live shows, which works well for bundles you can hold up and count on camera. ### How do I post a pushchair? Fold it, remove the wheels if they come off, and box it in a large double-wall carton. Most pushchairs are too large for standard Royal Mail parcels, so book a courier through a comparison site, or offer local collection and price it to match. ### What should I check on children's clothes before listing? Look for stains under bright light, check poppers and zips, and pull hood cords and neck ties. Long cords on hoods are a strangulation risk for young children, so remove them or leave that item out.