... & Rohs reports. 4) Water proof (1ATM/3ATM) Description of silicone rubber digital sport watch: Size: 17cm,18cm,.19cm,20cm. Weight: 10-13grams; Material ... the silicone bracelet, silicone watch, silicon wristband, silicone band, silicone keychain, silicone key holder / keyholder, silicone key ring, silicone rubber bands, silicone USB Disk Flash band, silicone MP3/MP4 case, silicone strap ...