Brinks 172-44302 44Mm Laminated Steel Keyed Lock with 2" Shackle (3-Pack) Pack of (3) 44mm laminated steel high security padlocks with 2-3/8" shackles, keyed alike 2-3/8 inch chrome plated hardened steel shackle Brass pin tumbler system Dual lever locking mechanism for increased security Lifetime Warranty