# Coin capsules, assorted sizes, 100 pack > Clear cases that keep fingerprints off a coin. - Protection, Best value - Typical UK price: £8 to £14 (a typical band, not a live price) - Platforms: Whatnot, eBay, Vinted, TikTok Shop, Depop, Etsy - Orders a week: 0–2000 - Not yet checked by a person A fingerprint on a coin's surface can knock its value. Capsules show both faces on your stream and protect the coin in the post. ## Setups - [Coin and jewellery selling desk](https://sellersetups.com/setups/coins-jewellery-desk): A precision scale, capsules, a light box for close-ups and a careful posting routine, for selling coins and small jewellery from one desk. ## Coin sellers who need capsules Capsules suit you if you sell individual coins, such as UK 50p and £2 commemoratives, proof coins or older silver, on eBay, Whatnot or TikTok Shop. Coin buyers want to see both faces and want the surface untouched. A mixed 100 pack covers several coin sizes until you know which ones you sell most. Once you know your best-selling coin size, buy that size in bulk and keep the assortment for odd pieces. ## Sizes and fit Capsules are sold by inner diameter in millimetres. Measure the coin with a ruler or calliper and pick the capsule that matches to the millimetre, as a loose coin rattles and rubs inside. Assorted packs often come with foam rings that let one capsule hold a range of coin sizes. Compare the listed sizes with the coins you sell; a pack with no 27 mm to 28 mm capsules is little use for £2 coins. Choose clear, hard acrylic or polystyrene with no PVC. Soft PVC flips can leave a green film on coins over time, which collectors know to look for. ## Capsuling coins without touching the faces Handle the coin by its edge, or wear cotton or nitrile gloves. Drop it into the base of the capsule face up, press the lid on until it clicks and check the coin sits flat. For posting, put capsules in a small grip seal bag, then into a padded envelope or small box. A crushed parcel can crack a capsule, so add a piece of card for flat protection. ## Other ways to hold and post coins Kraft padded envelopes, D/1, 100 pack, are the fallback when you post a capsule. The padding protects the capsule rather than the coin itself, so capsule first, then envelope. Grip seal bags, 100 × 150 mm, 100 pack, work for lower-value circulated coins sold in lots, where buyers care less about the surface. A 500 g precision pocket scale weighs coin orders to the gram, so you buy the right postage for a small envelope. ## Showing capsuled coins on stream and in photos Hold the capsule at its rim and angle it under a light so the design catches. Clear capsules photograph well against black card, which makes silver and gold stand out. £8 to £14 for 100 puts each capsule at roughly 8p to 14p, a small cost on most coins you list on their own. Clean capsules can go back into stock after a sale is cancelled. ## Common mistakes - Measure the diameter in millimetres and match it. A capsule picked by eye lets the coin rattle and wear. - Fingerprints on the faces tone over time; hold coins by the edge or wear gloves. - Soft PVC flips can leave residue on the metal, so store coins in hard non-PVC capsules. - A capsule loose in a thin envelope can crack. Add a piece of card or use a padded envelope. - Seat the coin flat in the base before closing, because pressing the lid down on an off-centre coin can mark the rim. ## Guides - [How to post jewellery safely in the UK](https://sellersetups.com/guides/post-jewellery-safely): Pick the Royal Mail service that covers a ring or a gold coin, pack it so nothing rattles, and keep the proof you need if a claim comes. ## Questions ### Which capsule size fits a £2 coin? A UK £2 coin is 28.4 mm across, so pick a capsule with a 28 mm or 29 mm inner size, or use a foam ring in a slightly larger one. ### What are the foam rings for? They hold a smaller coin centred in a larger capsule, so one capsule size fits several coins. ### Can I use capsules for proof coins? Yes. Proof coins scratch easily, so a hard capsule suits them, though many already arrive from the mint in their own capsule. ### Do capsules need cleaning? Wipe the outside with a soft dry cloth. Solvents can cloud the plastic, so keep them away. ### Can I post a coin capsule as a Large Letter? It depends on the thickness of the finished envelope. Measure the packed item against the thickness limit in Royal Mail's size guide.