ToolUSA Toolusa Heavy Duty 63mm Security Padlock With 3 Keys: TU8831 This 63mm Brass security padlock is one relaible lock weighing a 13 Oz Comes with 3 Steel keys - extra keys for the family The shackle is extra strong made out of Hardened Steel for increased security - Resists cutting Brass pin tumbler cylinder for a long lasting, smooth working action Dual Lever locking mechanism for increased security