1. STAINLESS STEEL: Gate lock is made of stainless steel and copper, heat treated and hardened to prevent violent unlocking, impact strength and fracture strength. 2. COMES WITH 5 KEYS: Exterior gate lock comes with 5 keys to prevent loss. Keys are thickened to prevent twisting and breaking, and the lock is soft. 3. TOUGH AND HARD WEARING: Security anti theft lock is tough and wear resistant, comfortable to touch, easy to clean dust, stains and dirt from the surface, and easy to use. 4. EASY TO INSTALL: Multiple insurance lock is simple and beautiful in design, easy to fit your home decor. Easy to install and keep your home safe. 5. SCOPE OF APPLICATION: Gate lock is suitable for security doors, dormitory doors, access doors, school projects, construction projects, hotel projects, etc.