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How to show the size of an item in your eBay listing

By Brian, an eBay seller and the founder of SellerThanks · Updated October 2026

Buyers can't pick up your item and look at it. All they have is your photos and a few words, and photos on their own give no sense of size. Here's how to make the size of your item obvious at a glance.

Photos that show scale

Keep your main photo plain and clear (eBay favours a clean main image), and use the scale photos as your second or third picture.

Words that show scale

Size options that make sense

If your listing has several sizes:

Clear size options also mean tools such as SellerThanks can read the size each buyer chose, and repeat it back to them automatically.

After the sale

Even with perfect photos, some buyers won't look closely until it arrives. Confirming the size in your after-payment message, ideally with a picture of their item at its real size, catches mistakes before you post. See what to do when a buyer says it's smaller than expected.

Show every buyer the size they ordered, automatically. SellerThanks can attach a "How big is your item?" picture to your after-payment message: the photo from your listing, drawn at the size the buyer chose, next to a 50p coin. It's made for each order, for the exact style and size they picked.

Example size guide picture: a dog sticker drawn 70mm tall next to a 50p coin on A4 paper

Try it free for 7 days, no card needed Make a free picture now

More guides: What to write in an eBay thank-you message, with examples · How to get more eBay feedback without breaking eBay's rules · eBay's rules on messaging buyers, explained · eBay buyer says the item is smaller than expected? How to prevent it · How to reduce returns on eBay: a guide for UK sellers · eBay dispatch message templates, with tracking · SellerThanks vs 3Dsellers: a simple alternative for small eBay sellers