High-quality Material: This time lock box is made of plastic, strong, durable, and easy to clean. Versatile Lock Bin: The time lock box helps effectively control and manage your time, manage cell phone usage, limit smoking, control snack consumption, and restrict access to children's toys and game controllers, offering a practical way to help children develop healthy habits. Unlocking Design: Simple operation—just set the time. When the set time is reached, the lock box will automatically open. Once locked, the box cannot be opened prematurely; please set an appropriate time. Please Note: The maximum setting time is 999 hours, 59 minutes, and 57 seconds. The minimum setting time is 1 minute. The box will automatically unlock when the set time is reached. Prevent Smoking Addiction: Use this airtight timer lock container to support habit formation by securing items such as cigarettes, toys, mobile phones, snacks, and other personal belongings. Color: black Material: plastic Size: 15cm x 16.5cm Package Contents: 1 x Time Lock Box Only the above package content is included; other items are not part of the sale. Note: Lighting reflections and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance is +/- 1-3cm.