Mr. Longarm 0480 Marine Bi-Level Flow-Thru Very Soft Green Brush Compare our brushes to others, lighter block weights mean less user stress, more filaments so they last longer and patented hang tabs for convenience Chemical resistant plastic block with rubber bumper to prevent scratching and scuffing Standard threads fit all Mr.LongArm extension poles Choose regular or bi-level brushes with dual cleaning surfaces for hard-to-reach areas