Mechanical Keyless Entry Door Lock, 14 Key Mechanical Door Lock, Mechanical Keypad Door Lock with Handle, Double-Sided Stainless Steel Waterproof Keyless Gate Lock, for Home Office Fence GarageProduct Features 2nd Generation Mechanical Combination Lock This mechanical keyless entry door lock features a fully mechanical design that's tamper resistant and doesn't require charging or battery installation. With simple setup and operation, it provides strong anti theft security. The second generation allows for easier password changes, and the adjustable left right handles give added flexibility Universal Compatibility with Various Doors This