1.Eco-friendly,SGS Certificate 2.100% silicone 3.Customized logos 4.for teenager,athlete,lovers,families etc. material: SRperformence : good resilience,ozone resistance, ageing resistance, low temprature and bending resistance,low compression deformation,perfect electrical performance. silicon bracelet1.made of high quality silicon rubber2.eco-friendly3.high tensile strength,abrasion resistance, ...