These keychain pendants are made of acrylic with transparent appearance, sturdy and not easy to break, and the is super to friction and prevents the from being scratched Be taken as: these keychain pendants with blank sides are ready to DIY, draw, engrave or stick your favorite stickers, create them into keychains, zippers, backpack labels, decorations, gift tags, pendant decorations, souvenirs and many other crafting items Note: there are protective films covering on the both sides of acrylic discs, which can well protect these pendants from being scratched or soiled before arriving in your hands, and you are supposed to tear the film off if you want to use