Big Boat Bi-Level Brush Soft (Yellow) Description 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. Starbrite poles are constructed with aircraft grade, triple anodized aluminum for years of maintenance-free use. Features Soft wash brush features fine Star prene* fibers with flagged ends to hold water and cleaning solutions for easier washing. Will not scratch plastic windows. Will only fit quick connect handles.