Security: 4-digit combination lock with 10,000 combinations. The metal wheels are easy to control. The desired combination can be easily restored at any time. High security and strong anti-theft. High quality: Double-layer construction, made of rust-proof zinc alloy, can withstand hammering, burning and sawdust. Comes with a weatherproof sliding cover to protect the combination dial from further weather damage. Large storage space: The internal size of the combination key box is 90mm*70mm*28mm (L*W*D), which can hold 5 house keys or 3 large keys at the same time, and can also hold car house keys, room cards and other items Easy to install: All necessary installation accessories (peephole installation and wall installation) are included. Bilingual instructions in Chinese and English are included to teach you easy installation step by step. Applicable places: garages, gardens, classrooms, factories, companies, shops, universities, dormitories, holiday homes, etc. Easy access and safety. Function: --High-strength alloy lock body, stronger and safer, effectively resisting violent damage --Built-in carbon steel spring, the cover will open automatically after opening, easy to use. Save time and effort --The large space can be positioned as you like and can hold 5 keys at a time, which can hold car keys, room cards and other items --High-quality biting wheel, precision assembly, smooth hand feeling, high precision and durable biting wheel - ABS plastic rain cover, effective against rain, water and squeaks, so you feel comfortable when using it outdoors. Specifications: External dimensions: 115 x 95 x 40 mm Internal dimensions: 86mm x 63mm x 30mm. Housing Material: ABS Plastic, Lock Material: Zinc Alloy, Color: Blue, Black, 4-digit combination lock. Important Notes: 1. Keep the shutter panel closed for water resistance. 2. It is recommended to rotate the dials weekly to keep them working. 3. Don't forget your password or you will have no chance to reset it. Scope of supply: Key box with combinationYeuri