Clear crtstal UV resin with self-leveling and self-degassing properties can cure a smooth crystal clear, glassy finish. Anti-scratch, anti-stain, and yellowing resistance.Our hard type craft resin is made from high-quality and non-toxic materials. There is an odor before curing, it is harmless and will completely disappear after curing.With diffirent types of nozzles, even hand work amateur can make personalized jewlry.