99 Hours Timing: Free setting of unlocking time, up to 99 hours and 59 minutes. After the timing is finished, the lock ring will open automatically. Metal Body: The lock body is made of high-quality metal with smooth edges and surfaces. Enhanced textured metal construction for durability and security. Easy Operation: Small LCD with white backlight displays the unlock time clearly. Three buttons to set hours or minutes, easy to use. Super Standby Time: Micro-USB rechargeable, maximum standby time can reach up to 500 hours on a full charge. Widely Used: Can be used to lock up items such as cigarettes, cell phones, or snacks. Suitable for use in kitchens, gyms, and schools. Battery Capacity: 3.7V/200mAh Standby Time: 500 hours Material: Metal Color: Black Package Contents: 1 x Time Lock Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.