Skylox® manufactures a unique tool that will provide Lockout / Tagout safety to your aircraft service crews during ground maintenance procedures. The circuit breaker safety lock is easy to use and very durable, all at a very low price. Skylox® should be an integral part of your aircraft circuit breaker lockout/tagout procedures on electrical panels in accordance with OSHA, AFOSH, NAVOSH and the FAA. Featured at NAVAIR, JSWAG and JFOWG annual safety conference, Skylox® products are approved for use and as part of the Joint Service General Wiring Maintenance Manual, US Naval Air Systems Command Lockout/Tagout Procedure and are featured in PS Magazine 743 for Aircraft Safety Procedures. 100% made in USA.