... Silicone/NBR/NR, any color. 2,pass SGS,CE,Rohs 3.High quality 1,Made by grade of ... silicone rubber and it mixed MAGMA-Q&Tourmaline2,This ion silicone watch can emit negative ... imune function.3,Light weight(10g),variety colors ,fashion design,water resistance (1-3ATM)4,Negative ion ... good quality.11,This is ion watch, sport watch,fashion watch, silicone watch ,bracelet watch,rubber watch and ...