Silicone watch strap 1.Material: 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 ions and infrared which made you ... with good quality.11,This is ion watch, sport watch,fashion watch, silicone watch ,bracelet watch,rubber watch and so on. Silicone watch strap ...