wide elastic rubber bands 1:100% silicone band 2.Non-toxic, and eco-friendly 4.SGS/Rohs compliance. 3:Custom ... Sizes,Color Material100% silicone; It's harmless for body. non-toxic, and eco-friendlySize Available for any colors, any shape ... flexible silicone; 2.Bands are softness, fashionable, non-toxic and Eco-friendly; 3.Non-stick finish, excellent water-proof, unbreakable easy to keep ...