1.100% silicone.Pass SGS certification & non-toxic 2.durable and high flexible 3.Available many designs and colors 1) Made of 100% silicone rubber, harmless to body, high quality2) Available in various colors, sizes3) Logos can be put on the bracelet, by print, embossed, debossed, Multi-tier color, mixed color, glow in dark, UV color change ,etc.4) OEM orders are welcome5) Standard sizes silicone ...