1) Silicone digital slap watch 2) RoHS,SGS & CE 3) waterproof quartz 4) eco-friendly, $0.50~1.00 5) interchangeble band Promotional OEM Silicone Digital Slap WatchColorful Silicone Digital Slap WatchFeature1.Precise core movement ,silicone band and core moment 2.Ergonomic design and easy to wear 3. Slap the strap on wrist, it can roll along your wrirst naturally (no buckle needed )Steel bar ...