# Pet supplies > Collars, toys, beds, grooming gear and treats. Buyers want sizes, materials and proof it suits their animal. Pet buyers shop by animal and by size. A dog harness listing that gives chest and neck measurements in inches sells, and one that says "medium" gets questions and returns. Accessories like collars, leashes, bowls, toys and handmade bandanas are the simplest place to start. Treats bring state feed rules, and medicines are off limits for a home seller. Most pet orders are soft and light, so a poly mailer covers them. Beds and bulk bags of treats go in a box and need weighing before you list. ## How to pack it - Fold collars, leashes and soft toys flat into a poly mailer. - Wrap bowls and tins, then box them with paper around every side. - Weigh treat bundles each time before you buy the label. Avoid: Ceramic bowls in a mailer. They break in the sorting machines. - **[Gray poly mailers, 10 × 13 in, 100 pack](https://sellersetups.com/us/product/grey-mailing-bags)** ($8 to $15): Self-seal poly mailers add almost no weight, so one garment usually ships at the lightest Ground Advantage tier. The film is opaque gray, so it hides the contents, and a 4 × 6 label sits flat on it. - **[Small corrugated boxes, 25 pack](https://sellersetups.com/us/product/single-wall-boxes)** ($12 to $25): Use these for boxed toys and beauty sets that a poly mailer would crush, when double-wall board costs more than you need. - **[Bubble wrap, 12 in x 175 ft](https://sellersetups.com/us/product/bubble-wrap-roll)** ($15 to $30): A long perforated roll costs several times less per foot than the small packs sold at the post office or a drugstore. - **[4 × 6 in thermal labels, 500 fanfold](https://sellersetups.com/us/product/thermal-labels-fanfold)** ($8 to $16): Fanfold stacks feed flat behind the printer and hold more labels than a roll. 4 × 6 in matches the label size USPS, UPS and the marketplaces print. ## Shipping per order - USPS Ground Advantage, under 1 lb: $6.93 to $8.95. Clothing, cards in a mailer and other small items under 1 lb. Tracked, with $100 insurance included. - USPS Ground Advantage, 1 to 2 lb: $7.61 to $13.42. Shoes, jeans and boxed items up to 2 lb, tracked with $100 insurance. - UPS Ground, up to 5 lb: $12.00 to $25.00. Tracked UPS Ground for boxed items up to 5 lb, for when it costs less than USPS. ## Choosing a pet line to start with Dog accessories have the widest audience, then cats. Handmade collars, bandanas and personalized tags do well on Etsy, while bundles of grooming gear and toys suit Whatnot and TikTok Shop. Pick one animal and build depth in sizes before adding more. A full run of dog harness sizes in one style beats a single size in ten styles. ## Treats, food and the feed rules Pet food and treats count as animal feed. Check your state department of agriculture's rules before your first sale, register where required, and keep a record of every ingredient batch you buy. Reselling sealed, branded treats is simpler than baking your own. Check the dates on stock and rotate it so the oldest sells first. ## Measuring and photographing pet products Lay each collar or dog harness flat beside a tape measure and photograph it at full stretch and fully closed. Photograph clips and buckles close up, since buyers worry about a dog slipping free. A photo of the item on a real animal sells better than a flat lay. Use your own pet or a friend's, with a calm background. ## Selling pet supplies live Live shows suit bundles and mystery bags. Squeeze each toy for the microphone and stretch leashes on camera so buyers see the length. Keep a sizing card on the desk with neck ranges for each dog harness size and read from it when buyers ask. It saves guessing on air and cuts returns. ## Packing light, soft and bulky orders Collars, leashes, bandanas and soft toys go in a poly mailer, folded flat. Ceramic bowls need bubble wrap and a box, with paper filling every gap. Compress a bed by rolling it and strapping it with tape before boxing it. Measure the packed box, since a rolled bed often avoids a costly oversize box. ## Shipping, returns and repeat buyers Most accessory orders weigh under 1 lb, which keeps them in the cheapest USPS Ground Advantage band. Weigh treat bundles each time, as tins and jars push the weight up fast. Pet owners buy again when the animal grows or a toy gets chewed. Add a card with your shop name to each order and keep the same sizes in stock. ## Common mistakes - Selling homemade treats without checking your state's feed rules can get you shut down, so contact the state department of agriculture first. - Listing dog harnesses as small, medium or large with no measurements leads to returns, so give neck and chest ranges in inches. - Listing flea or worming products gets listings removed on most platforms, so leave medicines to vets and pharmacies. - Shipping a ceramic bowl in a poly mailer ends in shards, so wrap it and box it. - Leaving squeaky toys with loose parts in a bundle puts animals at risk, so check every toy before it goes in. ## Setups - [Handmade dog bandanas and collars on Etsy](https://sellersetups.com/us/setups/etsy-handmade-pet-accessories): A sewing corner that makes and ships bandanas, collars and leash sets on Etsy, with offcuts and seconds cleared on Mercari. ## Questions ### Can I sell homemade dog treats? Often yes, but pet treats count as animal feed, and many states require you to register or license the product with the state department of agriculture before you sell. Labels need ingredients and a guaranteed analysis. Check your state's rules and the FDA pet food pages first. ### Can I sell flea and worming treatments? Prescription treatments can't be resold, and most platforms ban pet medicines. Leave veterinary medicines to vets and pharmacies, and check your platform's prohibited items list before listing anything for parasites. ### Can I sell live animals on these platforms? Whatnot, eBay, Mercari, Poshmark, Depop, Etsy, TikTok Shop and Facebook Marketplace ban or tightly limit live animal sales. ### Do dog toys need safety testing? Pet toys aren't covered by the CPSC rules for children's toys, but you're still responsible for selling a safe product. Avoid small parts that snap off and squeakers that come loose. ### How do I describe sizes for collars and dog harnesses? Give the adjustable range in inches for neck and chest, plus the strap width. Add a breed example such as "fits most adult beagles" to help buyers picture it. ### Can I sell used pet beds and carriers? Yes. Wash covers, photograph any wear, and say whether the item has been in a home with smokers or other animals. Buyers with allergic pets ask.