SKILCRAFT® 3/Pack, Universal Multi-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 (120/277 voltage). Lockout fits double and triple pole switches .3" - .6 " high, .35" - .44" deep, with or without a hole and will accommodate 1 padlock with shackles up to 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 1-5/8"W x 1"H.  Made in the USA.