Stringliner 25100 1/4 lb Twisted Gold Nylon Pro Reel Reloadable Construction Line is an essential tool for all of your construction jobs. It can easily be reloaded after use and features an automatic rewind, with the use of a power screwdriver, and clip on rewind crank. The nylon line is twisted and made of polyethylene for long lasting durability. It is also brightly colored, making it easier to see from a distance.