The block also includes a threaded hole for usage with a handle. (sold separately) These multi-purpose brush heads can do it all. Upgrade your kitchen with the best cleaning brush heads available to take care of all your pipe & fitting or pint & bottle needs. We also offer a variety of colors to make kitchen management a snap. This plastic injected Nylex brush is perfect for cleaning greasy surfaces on kitchen walls to vehicles. The round edges allow this brush to accurately clean small grouts and passageways. The Nylex bristles are non-absorbent, and approved for food equipment use.