Features: 1) We supply different kinds of silicone wristbands in different colors 2) High quality Features: 1) Available material: materials for silicone, NBR, fluorosilicone, viton (FKM), viton DuPont & Dow elastomers, neoprene, HNBR, NBR + PVC, natural rubber, SBR, IR, IIR (butyl rubber), CR (neoprene), SBR, AU, ACM, CO, etc. NSF-61 approved material, meets drinking water system requirements 2) ...