Single Pole Breaker Lockout, Snap-On, Circuit Breaker Voltage 120, For Use With Breakers with Hole in Switch Tongue, Max. Number of Padlocks 1, Padlock Shackle Max. Dia. 9/32 In., Red, Height 5/16 In., Width 13/16 In., Length 2-1/8 In., Material Nylon and Stainless Steel, Standards OSHA 1910.147