UGE Creative Touch Screen LED Waterproof Sport Casual Wrist Watches Silicone Wrist Strap Battery: environmental lithium battery, long life; Header size: 43 x 43 mm Thickness: 9 mm Material: stainless steel case and silicone strap. Durable silicone strap and very comfortable to wear 3ATM water resistant (waterproof 30M). Please don't press button under water. German high hardness glass, wear-resisting, compression, and imported hot glue, waterproof effect is very high. To keep up with the fashion, this gracefully and enigmatic wrist watches would be your best choice