Cap it Off Jewelry Kit. Bottle caps have never been so glam! Create your own bottle cap earrings and necklace set with this kit! Kit contains three 1x1" metal bottle caps with pre-punched holes, jewelry findings, 1 stretchy necklace cord, three 4x4" sheets of decorative stickers, five clear 3D stickers and step-by- step instructions. Conforms to ASTM D 4236. Recommended for ages 7 and up. WARNING: CHOKING HAZARD- Small Parts. Not for children under 3 years.