Add-A-Quarter PLUS Ruler

Circuit Breaker Locking Device – Made from glass-filled nylon.

Temperature Range: -20℃ to 120℃.

● Fit most existing types of European and Asia Circuit breaker.
● Recommended to use in combination with a padlock for added safety.
● Easily installed with the aid of a push button.
● Can accept padlock with shackle diameter up to 7mm.