Pricing mentioned is for EA. Requires a minimum buy of 1 piece. Bristle Material = Stainless Steel ; Brush Diam = 1/2 in ; Height = 3 1/8 in ; Overall Length = 7 in ; Speed = 25,000 rpm ; Stem Diam = 1/4 in ; Structure = Crimped ; Trim Length = 7/8 in ; Width = 2 in ; Weight = 3/4 lb ;