Padlock is designed exclusively for lockout tagout applications and is best used as part of a comprehensive OSHA compliant safety program Lockout tagout padlock is key retaining, which helps ensure the padlock is not left unlocked; Locks are keyed-alike: same key can open multiple locks Zenex thermoplastic lock body is durable, lightweight and non-conductive 1-1/2 in. (38 mm) Wide lock body with 1/4 in. (6 mm) diameter shackle, 1-1/2 in. (38 mm) shackle length and 25/32 in. (20 mm) width Includes one red lockout tagout padlock, one key