Blue Spot Tools 3 PCE wire cup brush set is manufactured from copper plated steel wire. This useful set contains a 25MM(1″) end brush, 50MM(2″) wheel brush and a 50mm(2″) cup brush. 1 x 25mm (1″) end brush, 1 x 50mm (2″) wheel, 1 x 50mm (2″) cup brush.