Miniature Circuit Breaker Lockout, Circuit Breaker Lockout Type Pin-In, For Circuit Breaker Type Mini, For Maximum Padlock Shackle Diameter 9/32 in, For Voltage 120/277V AC, Maximum Number of Padlocks 1, Overall Height 0.7 in, Overall Length 4.5 in, Overall Width 2.4 in, For Use With All Master Lock and American Lock Safety Padlocks and Lockout Hasps, Breakers with Lockout Holes on Outside of the Switch, Openings up to 1/2 in Between Lockout Holes, Lockout Color Red