Rust-Proof and Durable: The lock body is crafted with premium aluminum that resists corrosion. The copper lock cylinder is not easy to rust, enhancing the lock's overall durability and making it suitable for indoor and outdoor use. Safe Against Prying: The lock shackle comprises high-quality hardened steel, providing higher hardness and better-cut resistance than the carbon steel shackle. The 4-pin brass cylinder and dual locking lever construction offer excellent pick and pry resistance. Anti-Scratch Protection: The lock body is covered with a pink ABS plastic protective shell for longer service life, providing maximum scratch protection for daily use. Keys Alike: The package comes with two padlocks and three keys for your convenience. The 1.8mm thick copper keys are durable and not easy to bend or break. Wide Applications: These portable padlocks are compact and ideal for schools, warehouses, gardens, garages, gates, fences, sheds, toolboxes, lockers, storage units, etc.