These are used empty tubes and can have stickers/buttons/ usage marks etc on them. We have thrown all the yellowed ones and will also send 10% extra to cover issues that we did not notice when packing. They will be different diameters, and you cannot select the size you want....It will just be a random pick of used button tubes.
Uses Button storage, storage for small items etc
The more you buy the cheaper it will works out per item.
Please look carefully at all the photos as they will help in selecting your item.