Keyed Alike version, meaning all locks with this product code operate from the same key, ideal for when multiple padlocks are required and one key will operate all. Premium grade, solid brass padlocks offering an optimal level of security for indoor or outdoor use at home. Double locking Lion padlocks have hardened steel shackles and pin tumbler lock mechanisms. Keyed alike Offers a superior level of security for indoor or outdoor use at home Hardened steel shackle Double locking Solid brass lock body Pin tumbler lock mechanism" Size W x D mm: 51 x 15.5 Shackle Dia. mm: N/A Shackle Clearance Size W x H mm: 28 x 30 Key Qty: 2 No. of Pins: 4 Material: Brass,Steel Shackle Type: Open Security Rating: 4