This complete brush includes an aluminum head, brass NPT female thread, 4 3/4" long hog's hair bristles, soft blue bumper gasket, and 4 stainless steel screws.
It's hard to beat the durability and reliability of natural hog's hair under prolonged use. Natural hairs are gentle and less likely to damage vehicle paint than synthetic nylon, poly-carbonate, or polypropylene fibers that are coarse and stiff. The Hogzilla hog's hair brush is an excellent choice for car washing and is built to last.