The main purpose of these flat bottle caps is to make DIY handicrafts. The double-sided painting is brightly colored and the shape of the bottle caps is very novel. Craft bottle caps can be used to make bottle cap necklaces, badges, hair bows, refrigerator magnets, scrapbooks and other crafts. They are also very suitable for craft classes, and holiday decorations.SpecificationColor: Gold ToneMaterial: Metal, ResinOverall Dimensions: 34 x 3 mm / 1.34 x 0.12 inch (Dia*H)Bottom Inner Diameter: 25.4 mm / 1 inchEpoxy Stickers Diameter: 25.4 mm / 1 inchEpoxy Stickers Thickness: 1.5mm / 0.06inchPacking List: 40pcs x Double-Sided Colorful Craft Bottle Caps, 40pcs x Clear Epoxy StickersAdvantages1. The sticker is made of resin material, which is waterproof, which can protect the picture.2.