100%silicone material environmental ,non-toxic low price with high quality 20years experience 1,Application computer /calculator /cell phone / game machine2,Keypad button material 100% environmental silicone3,Logo as you want (good flexibility )4,Hardness 40-60 shore A as customized requirements5,Certification ISO9002 ,SGS,ROSH6,Packaging details PE bag ,carton or meet customer’s requests .7, ...