3" flat oc poly brush. Best choice of brush to use with One Coat latex paints. Features 75% fine-tip polyester filament bristles mounted on a nickel ferrule. Heavy-duty black plastic handle provides a light comfortable grip. Length: 2-3/4", width: 3", thickness: 7/8" No. 1769586: Length: 3-3/4", width: 4", thickness: 7/8" No. 1769587: Length: 2-1/2", width: 1-1/2", thickness: 7/16", angle sash No. 1769588: Length: 2-1/2", width: 2", thickness: 7/16", angle sash No. 1769589: 2-1/2" sash