ToolUSA Toolusa Heavy Duty Chrome Plated D-shaped Rectangular Shaped Security Padlock Shutter Lock Shackle Lock Jacket Monoblock: TU7045 Heavy Duty Hardened Steel and Chrome plated 50mm lock is versatile for high security! Key retaining and comes with 4 keys that are hard to duplicate - Jimmy Proof Pick Proof! Heel and toe locking shackle that is freely rotating preventing cutting and sawing! Keyway requires a 90 degree turn prior to connecting with disk - Perfect for store front protection The shackle has no springs to bind up or corrode over time - Has Polished Satin Finish