General description Waterproof Mechanical Code Lock offers a secure keyless entry solution with a customizable 1-11 digit code combination. This lock is designed for various applications, including wooden office doors, interior doors, and rental doors. Technical specifications Material: Zinc Alloy and Steel Door Thickness: 30-60mm Password Length: 1-11 Digits Tab Center Distance: 60mm Panel Dimensions: 14.2 x 4.4 x 7 cm (Approx.) Padlock Dimensions: 14.2 x 4.4 x 6.4 cm (Approx.) Installation Includes screws and an English manual for easy installation. Usage Recommended password length is 4 to 6 digits. Only one set of passwords is allowed, and the numbers cannot be repeated. For example, if the password 123456 is set to 231456, it can be opened. Other information Package includes: 1 x Panel, 1 x Padlock, 1 x Lock Card, 1 x Card Slot, 1 x Installation Accessories, 2 x Rubber Locks, 1 x User Manual (English language not guaranteed).