Features:This is the steel roto brush for use as your first brush to clean out old wax before ironing on new wax. Use at LOW RPM's and do not apply pressure to ski base.Save precious time by using roto brushes when waxing your alpine skis and snowboards.Do not push down when roto brushing: Use the weight of the roto brush assembly and drill to do the work for you.Specs:Red Body/Steel bristlesRoto Brush: 3 x 3 x 4 inches: 100 mm length