Features: Combination lock with 4 digital design: The combination lock is designed with a four-digit code, which is more secure than a 3-digit code, you can set your own code as needed by following the instructions and easy to remember it. You no longer need to worry about finding a key. Widely Application: This 4 digital disc padlock design with high-security combination padlock is constructed with stainless steel, anti-rust, anti-corrosion, and anti-freeze, suitable for indoor and outdoor use, such as storage unit lock, garage lock, shed lock, trailer lock, outdoor gates lock, warehouses lock, logistics lock, doors lock, and moving truck lock, etc. Specifications: Color: black Lock body material: stainless steel Shackle material: hardened steel Lock core: pure copper Package include: 10 X 4 Digit combination lock Warm notes: The color may exist a slight difference due to different screen displays. Please make sure that the shackle size of the product meets your requirements before purchasing.