9'' scrub, polypropylene block, filled stiff white polyester, resin set. This small scrub is ideal for close and spot work in constricted areas. Recommended handles, ALH7, ALH27. Some customers also find the shorter (28'') ALH15 handle very useful with this brush. For bigger 12" floor scrubs, see #B759RES and #B770RES. See also the highly abrasive version filled with stainless steel wire, #B1342.