1pc x Metal timer lock Improved Sleep Quality: reduce the time of looking at mobile phones, fall asleep early, improve sleep quality, enhance immunity, and live a health y life, Control smoking: limit smoking, reduce the number of cigarettes per day, gradually extend the interval, and cultivate health y living habits. Easy Operate: samll LCD with backlight, display the unlock time soft and clear, 3 small buttons to set hours or minutes, easy to use. Metal Body: The Lock body is made of metal, Sharp edges and smooth surfaces, enhanced textured metal lock.Durability and Security. 99 Hours Timing: Free setting of unlocking time, up to 99 hours and 59 miunutes.after the timing is finished, the lock ring will open automatically. Wide Applications: you can use this rechargeable time padlock to lock up addictive objects, like cell phone, cigarettes, snacks, drinks, nicely suitable for kitchen, school, gyms and more, letting you learn self-discipline; With a compact size and light weight, it is also fit well for airport and travel to protect your privacy and important items at any time