Sure Safety offers Miniature Circuit Breakers. Sure Safety is an ISO 9001:2000 certified company. The Miniature Circuit Breakers require no tools to install. This is a standard "Pin" style lockouts install easily with the aid of a push button. Lockouts are available for single and multi-pole breakers. The Miniature Circuit Breakers are recommended to lock with Brady Safety padlocks or other lightweight padlock with shackle diameter up to 9/32 inches. These lockouts are made of glass-filled nylon.