Starbrite Extend-A-Brush heads are made with Star prene, a lightweight polymer fiber that does not stain, discolor or become brittle. It resists most cleaning chemicals and withstands heat up to 200F. This space-age material will not rot, mildew or absorb odors. Will fit all Extend-a-brush handles.
Soft bristles will not scratch plastic windows.
Star prene fibers with flagged ends to hold water and cleaning solutions for easier washing.