This nylon scrub brush features a .020" diameter fill material throughout the block and is considered an everyday scrub brush for light to medium duty scrubbing applications. Great for tiled and cement floors. The nylon style brushes are our most durable brushes and will last the longest out of all the that we have to offer. Soak your nylon scrub brush in hot water for 5 to 10 minutes to help the nylon recover its form. Fits directly onto .