[High-quality material] The main body of the lock is made of metal, sharp edges and smooth surfaces, improved metal texture lock. Durability and safety. [99 hours timing and super long standby time] Free unlock time settings, up to 99 hours and 59 minutes. When the timing is complete, the lock ring will automatically open. The general USB can be charged and the maximum standby time can reach 500 hours when fully charged. [Easy to use] The metal timer lock has a small LCD screen with backlight to show the soft and clear unlock time, 3 small buttons to set hours or minutes, easy to operate. [Improve sleep quality] Metal padlock with timer can reduce the time spent looking at mobile phones, fall asleep as soon as possible, improve sleep quality, improve immunity, live a healthy life, control smoking: limit smoking, reduce the number of daily cigarettes, gradually extend the interval and raise it and raise healthy living habits. [Wide range of uses] Metal padlock with timer is very suitable for kitchen, school, gym, etc. Its size is compact and lightweight, suitable for airport and travel. You can lock important items at any time to protect your privacy. Colour: Black Material: Alloy Package Contents: 1 * Timer Lock 1 * USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the actual color. The allowed measurement error is +/- 1-3 cm.