99 Hour Timing: Freely set the unlocking time, up to 99 hours and 59 minutes. When the timing is complete, the lock ring opens automatically. Metal Body: The lock body is made of high-quality metal, with sharp edges and smooth surfaces, enhanced textured metal lock. Durable and secure. Easy to Use: Small LCD with white backlight, displays the unlocking time softly and clearly, 3 small buttons to set hours or minutes, easy to operate. Super Standby Time: Universal USB rechargeable, Max Standby time can reach up to 500 hours after full charge. Wide Use: Lock up addictive items such as cigarettes, drugs, mobile phones, or snacks. Suitable for kitchens, gyms, schools. Battery Capacity: 3.7V/200mah Standby Time: More than 500 hours Material: metal Color: Black Package Contents:1 x Timer Lock Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.