Professional 4pcs Blue Combination BrushesChoose the brush you want according to your needs, suitable for different cleaning needs. 5.1cm/8.9cm/10.2cm/12.7cm, with various shapes, sizes and rigidity. (Drill is not included) Excellent Quality and High Efficiency Drill brush attachment is made of high quality nylon bristles, high chemical resistance and durability to remove all stains. Convenient to use and durable. The high-speed rotation of the drill combined with the high-quality bristle brush can clean dirt, grime, stains, water stains and years of accumulated dust cleanly and easily. Widely used Medium-stiff polypropylene bristles scratching power scrubbing brush Not. The durable drill power scrubber brush is widely used for indoor and outdoor cleaning, such as: bathroom, pool tile, flooring, brick, ceramic, marble, grout, car interior and exterior cleaning, car wheels, grease stains on the garage floor, outside the house wall, fence , handrail, etc. ConvenientMade of high-quality nylon bristles, which attaches well to the power scrubber, and you don't have to worry about the bristles falling off or causing scratches. Suitable for most cordless drills. All four brushes have 6.3mm (1/4 inch) quick-change shanks, can be easily attached to cordless drills. Excellent Quality Sturdy construction, bristles firmly connected. The solid plastic block prevents distortion and cracking. Excellent service team to serve you 24 hours a day. Specifications: Material: Plastic. Color: Blue. Brush Wire Material: Polypropylene. Sizes: 5.1 cm, 8.9 cm, 10.2 cm, 12.7 cm. Package Contents: 1 x 2" round brush. 1 x 3.5" ball brush. 1 x 4" round brush. 1 x 5" Round Brush Warning: Cordless drill / impact driver / drill bit not included. Note: Do not use this brush on soft suede or leather as it will damage your couches or could ruin seats.