Safe material, non-toxic, odor free, superb transparency, excellent scratch, stain and yellowing resistance. Curing time: about 5 minutes with UV lamp of 9W or 36W; 35-60 minutes with sunlight when it’s strong enough. Package includes a 9W foldable UV lamp with USB cable. 17 metallic open back bezels, smooth finish, strong color retention. Cute designs including kittens, christmas patterns, pumpkin, candy, unicorns, castle, etc. Come with 2 reusable glueless tapes to be sticked to the back of the bezel so you can fill it with resin. Ideal for pendants earrings or charms making.