These brushes are made of premium PP material, wear-proof and very durable. This set includes 3 brushes in different size and shape. Work with the drill together, making your cleaning work easier and more convenient. Features: These brushes adopt premium PP bristles, high hardness and not easy to deform. Each brush has a 1/4 inch quick shaft connected to the drill, easy to install. Work with the drill for effective cleaning effect, labor-saving and time-saving. We have 3 brushes with different size and shape to fit into most drills. Suitable for cleaning bathtub, grout, bathroom floor, tile, toilet and carpet etc. Specifications: Condition: 100% Brand New Material: Plastic Optional Color: Green / Red Size: 1: 5*4.7cm/1.97*1.85in, 2: 8*10cm/3.15*3.94in, 3: 10*4.5cm/3.94*1.77in Weight: approx. 238g Package list: 3 * Drill Cleaning Brush Note: 1. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 2. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding.