Master Lock® Safety Padlock, Commercial Grade Non-Rekeyable, Alike Key, Laminated Steel Body, 9/32 in Shackle Diameter, 3/4 in Shackle Height, 5/8 in Shackle Width, Hardened Steel Shackle, 1-9/16 in Body Width, 4-Pin Tumbler Locking Mechanism, 2 Bumpers