General description YMYNY combination locks are designed for high security with a 4-digit resettable code, offering 10,000 possible combinations. These locks are perfect for various applications, including school lockers, gym lockers, storage rooms, and swimming pools. Their sturdy construction ensures durability and reliability, making them ideal for outdoor use. Technical specifications Type: 4-digit combination lock Resettable: 10,000 possible combination codes Material: Zinc alloy Quantity: 2 Color: Black Shackle thickness: 6.3 mm Lock body height: 80 mm Lock body width: 40 mm Lock body thickness: 16 mm Pitch: 20 mm Installation The original combination is set to 0-0-0-0. To set your combination, follow these steps: 1. Lift the handle to open the lock. 2. Turn the handle 90° counterclockwise and push it in fully. 3. Set your combination by turning the knobs. 4. Turn the handle back to its original position to complete the setting. Usage Ideal for securing storage rooms, gyms,