Features: This product is made of BPA-free materials, thick, strong and easy to clean, and can be used for a long for time. Preventing and controlling mobile phone addiction, preventing excessive smoking, reasonable control of snacks, and controlling children's toys and gamepads is an effective way to control addiction and develop good habits. The operation is simple, only need to set the unlock for time, the lock for time is between 1 minute and 999 hours (the longest is about 41 days), when the set for time is reached, the lock box will automatically open. Before using for the first for time, you need to install 2 AAA batteries (not included). If the code box is closed or locked before installing the battery, connect the charging cable (included). When the screen is on, press and hold (H, for M) to exit for emergency. In addition, the timing lock box cannot be charged, which may damage the lock box. The for time lock can safely prevent distracted calls from intruding the for time of family and friends, and can be given to them as a gift. Specifications: Maximum setting time: 999 hours 59 minutes 59 seconds Maximum setting time: 1 minute Power supply: 2 AAA batteries Size: Diameter approx.15cm x Height 18 for cm / 5.91x7.09 inches Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC X for Time Lock Box