This bag contains 40 feet of 1/2 100lb rated webbing. The bag is attached to the webbing so you never lose the bag after deployment. A great product for hoisting tools up on the roof or bring hose line up to the second story. The bag has a quick release buckle for easy mounting almost anywhere. Note that the bottom buckle is attached to the bag. For deployment just detach open, hold the end of the web in the bag and simply toss it. The bag never leaves the web. This is a compact, quick great tool. Not for rapelling or lifeline.