Machine Application Flex Cat, Saber Compact, Saber/Stride Compact Rotary Scrub Brush, 20", .030 Crimped Poly, w/ Windsor 6 Point Spring-Lock Plate Brush Type Scrub Brush Block Diameter 20" Fill Material .030" Crimped Poly Clutch Type Windsor 6 Point Spring-Lock Quantity Required 1 Scrub Deck Size 20"