Model Number: slap banD watch-b67G Brand Name: Jiaxing Key Specifications/Special Features: Material: siliconeEasy to wear, easy to removePassed SGS/CE certificationFeatures:Round alloy case (34mm) inside, covered by silicone outer case (40mm)Slap the strap on wrist, it can roll along user's wrist naturally (no buckle needed) steel bar insideSilicone outside for protectionChangeable strap and case and movement as you like in different color3ATM water-resistantChangeable as per customer's requests or designs