Barrel Buffer – Won’t unravel, easy to wash, cleans like a champ.Rocket Disk – Something you’ve never seen before. All-weather seal retracts during insertion to prevent paint going up your barrel, then expands as you pull back to remove everything in it’s way.Molded Shaft – Not built on a twig, this beast of squeegee is forged out of tough & flexible plastic.All pieces are 100% interchangeable and 100% replaceable.