Metal Body: Crafted with a sharp-edged metal body and smooth surface, this lock boasts enhanced structure, durability, and security. Maximum Timer: Set timers up to 99 hours and 59 minutes! Once set, the lock engages and automatically unlocks when the time is up. Easy to Use: A small, backlit LCD screen clearly displays the unlock time. Three simple buttons allow for easy hour and minute adjustments. Versatile Use: Perfect for locking away addictive items like phones, cigarettes, snacks, and drinks. Ideal for kitchens, schools, gyms, and travel. Secure your valuables anytime, anywhere. Improve Sleep: Reduce screen time, fall asleep faster, and enhance your sleep quality for improved immunity and a healthier lifestyle. Control Smoking: Limit your smoking, gradually reduce daily cigarette consumption, and develop healthier habits.