No Tool universal circuit breaker lockout. Individual circuit breaker can be locked in the off position quickly and easily without any tools. Compact, universal design fits a wide range of single, double and triple handle circuit breakers. Accommodates breaker handle sizes ranging from 0.3 to 0.6 inch. Easily attached with no modifications to panel or circuit breaker and does not require holes in circuit breaker handle. Constructed of rugged nylon and stainless steel providing strength, durability, added security and corrosion resistance.