Metal Body: The lock body is made of metal with sharp edges and smooth surfaces, featuring an enhanced textured metal design for durability and security. 99 Hours: The maximum timer setting is 99 hours and 59 minutes. Once set and activated, the lock will automatically unlock when the time expires. Please set the time appropriately. Easy Operation: Features a small LCD with backlight that clearly displays the remaining time. Equipped with three simple buttons to set hours and minutes, making it user-friendly and easy to operate. Wide Application: This metal time lock can secure personal items such as cell phones, cigarettes, snacks, and drinks. Ideal for use in kitchens, schools, gyms, and more. Its compact and lightweight design makes it suitable for travel and airport use. Secure your belongings anytime to protect your privacy. Improved Sleep Quality: Helps reduce screen time before bed, encouraging earlier sleep and supporting better sleep quality and overall well-being. Smoking Control: Assists in limiting smoking by reducing the number of cigarettes per day and gradually increasing intervals between use, promoting healthier habits.