SKILCRAFT® 3/Pack Universal Single-Pole Circuit Breaker Lockout is designed with a slide-on feature that allows the device to be securely mounted to a wide range of breakers (110/220 voltage). Lockout fits single pole switches .3" - .6 " high, .35" - .44" deep, with or without a hole and will accommodate 1 padlock with shackles up to a 9/32" diameter. Breaker lockout is high visible red with label "DO NOT OPERATE" and is constructed from heavy-duty polycarbonate.  Measures 2"L x .75"W x 1"H. 3/Pack. Made in the USA.