【High quality】High quality alloy lock case, the overall lock case is a high quality alloy, which is waterproof. After special cold rail processing, hard casting 【Exquisite craftsmanship】The surface is chrome-plated, with exquisite craftsmanship and durability 【Suitable for】Suitable for indoor and outdoor doors. More effective against violent damage 【Package includes】Package list: 1 * Mechanical lock set, 1 * English manual, 2 * Installation package, Product model: 38D, Panel material: zinc alloy, Password length: 2-4 digits, Applicable door thickness: 10-60mm, Features: waterproof, no battery, Center distance of the lock tongue: standard 60mm, Lock Size: about 107 * 43 * 20mm / 4.2 * 1.7 * 0.8in 【Service and Warranty】We have confidence in our product. If you have any questions or concerns about our product, just feel free to contact us for the first time. We will provide a 24-months guarantee, and we promise to reply to you within 12 hours with a satisfactory solution, Manufacturer: Regun