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: Maximum timing capacity 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: Equipped with a small LCD screen with backlight, clearly displaying the remaining time. Three simple buttons allow easy setting of hours and minutes for convenient use. 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 better sleep quality, supporting overall well-being. Smoking Control: Assists in limiting smoking frequency, reducing daily cigarette intake, gradually increasing intervals between cigarettes, and promoting healthier habits.