Impact resistance: Electrical circuit breaker locking device with tough nylon body and stainless steel pin, suitable for heavy industrial use. Engineered Breaker Lockout: Fits 3/8" or smaller toggle hole spacing, isolates hazardous energy and prevents unauthorized access, is single and multi-pole disconnect ideal for. Breaker Lock: Pin out standard breaker lock with 1-5/8" body height and 11/16" tip distance. 10 Packs. Low conductive: Made of low conductive material to reduce the risk of electric shock during use, fine structure and smooth touch. Buckle design: The convenient button buckle design can lock the circuit breaker firmly to prevent misoperation. QWORK