1. 2/3.5/4 Inch diameter brush for wide area scrubbing, a cordless drill is NOT included in the package. 3 different sizes and shapes of brushes for cleaning around your bathroom surfaces. These nylon bristles will not scratch and can be used on tubs, sinks, baseboards, fiberglass shower enclosures, shower door tracks, and porcelain. All three brushes have quarter inch QUICK CHANGE shafts, Cordless drill NOT included Drill NOT include. Type: Drill Scrubber Brush Kit Size: 2/3.5/4 inch Quantity: 12pcs Package includes: 12 Pcs Set (As Shown In The Picture) type: A Colour:As shown Material:PP Package Contents: 1 set x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.