Material: The bristles of the brush attachment are made of PP, so that the brushes are resistant to wear and heat, while providing good cleaning performance. Good cleaning performance: With the drill brush, you can remove stains from many places, for example bathtub, bathroom sink, sink, kitchen wall, tile, floor , carpet in living room and car wheel hubs. They fit a lot of items and places. 4 pieces for choice: The drill brush accessory set is equipped with 4 different size brushes, 2 " " / 3.5 " " / 4 " " / 5 " ". You can choose the suitable brush according to the objects you want to clean, such as stains, iron rust, moss clean and wipe dry. Easy to Assemble: The connecting part of the drill brush accessory is hex screw, you just need to insert the brush accessory into the drill. Then it can work. Compatibility: Brush accessories are compatible with most cordless screwdrivers or drills. You can plug the brushes directly into the cordless screwdriver without the need for an adapter,