Our micro gems are crafted from high-quality, non-porous acrylic resin. They are lead-free, phthalate-free, and completely safe for oral use. These acrylic micro-flowers are cute and small. Unlock your creativity. 2.5mm in size(except Light Sapphire is 3mm) Acrylic and safe for teeth Save money by buying 10 pieces at a time Please note: These tooth gems are Lead-free Some gems may be irregular in shape due to mass production