... silicone, Competitive price 5. CE & RoHs Report Description of silicone ion watch: Size: 17cm, 18cm, 19cm, 20cm; Weight: 13 grams; Material ... % silicone strap, soft, comfortable, eco-friendly and non toxic to body; Movement: Chinese Movement Waterproof: 1ATM/3ATM waterproof; Function: Hour/Minute ...