Material: This time lock box is made of plastic, strong, durable, and easy to clean. Versatile Lock Bin: The time lock box helps control and manage time, limit cell phone use, reduce smoking frequency, manage snack consumption, and restrict children's access to toys and game controllers to support the development of healthy habits. Unlocking Design: Simple operation—set the desired time, and the box will automatically open when the time is reached. 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 59 seconds. The minimum setting time is 1 minute. The box will automatically unlock when the set time is complete. Habit Control: Use this timer lock container to store items such as cigarettes, mobile phones, snacks, or toys to support behavior management. Color: Black Material: Plastic Size: 15cm x 16.5cm Package Contents: 1 x Time Lock Box Note: Light reflection and different displays may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.