1.Twisted Knot Steel Wire Cup Brush 2.Material:steel wire 3.Size:2.5",3",3.5",4",5" 4. ... box 5.Model:JSL-8049 Specifications 1.Twisted Knot Steel Wire Cup Brush 2.Material:steel wire 3.Size:2.5",3",3.5",4 ... -scaling,cleaning. (2)Aggressive tools for heavy cleaning jobs on flat surfaces. 3. Charecteristics: (1)Cup brush ideal for brushing larger surfaces. (2)Good ...