Master Lock Miniature Circuit Breaker Lockout, up to 11mm Back Supports EXTENSIVE TPR METACARPAL PROTECTION Maximum Wet Weather Jackets EXTENSIVE TPR METACARPAL PROTECTION Maximum back of hand impact protection This Biz Flexi Band feature allows the waistband to flex up to 1 inch to accommodate in between sizes and allow maximum comfort for the wearer The patented device fits breakers with standard toggle openings 11mm or less and works with all Master Lock and American Lock safety padlocks and most hasps S2390 Miniature Circuit Breaker Lockout Device locks out most miniature ISO DIN pin out circuit breakers throughout the world