This cord is made for the pro's. Starting with heavy-duty, high visibility jacketing that is weather, water, UV, abrasion and flame resistant and maintains flexibility from 40-Fahrenheit up to 140-Fahrenheit - it is made to work as hard as you do! Additionally, it comes with a unique locking connector that prevents cords from coming accidentally unplugged from the connected power tool, Plus there is a power indicator light in the connector so that you can be sure (safely) that there is power coming into the extension cord.