Size: 1 inch. Quantity:100pcs Bottle Caps(No include Stickers). Material: Aluminum. Usage: It can be used to make jewelry items such as pendants, earrings, magnets, bracelets, etc. At the same time, it can be used as a ring to be tied to a belt. More uses depend on your imagination. Note: These products are made for handcrafted projects. Please do not regard them as ordinary beer bottle caps.