Hello, dear customer, welcome to our store!Before purchasing, please understand the specifications, usage and after-sales service of the products you need to purchase. We issue invoices for all products.======================================EASY, POWERFUL CLEAN: These one-of-a-kind drill brush attachments powerfully scrub away excess dirt, dust, and grime! Don’t worry about wasting time and energy by manually scrubbing your home surfaces.USE EVERYWHERE: Medium-hard nylon bristles won't scratch your tub and shower tile surfaces. Whether you want to scrub your bathroom or your floors, this amazing tool is your cleaning solution! This set is professionally designed to clean bathroom surfaces, grout, upholstery, wheels, tiles, showers, toilets, kitchens, tubs, carpets and more. The extension attachment allows you to get into tight spaces and hard-to-reach areas for a thorough cleaning.ULTIMATE COMPATIBILITY: Three different brush head sizes let you scrub those hard-to-reach or large surfaces with ease. The perfect way to truly keep every corner of your house spotless! The brush works with almost all cordless drills.QUICK CHANGE SHAFT: When you're ready to change the drill cleaning brush attachment, simply pull out our innovative quick change shaft and easily install the new brush. Press the brush against the surface you want to clean and start drilling. Your surfaces will be spotless in no time.GREAT ATTACHMENTS: We guarantee you that this drill brush attachment set will meet all your scrubbing needs. It's versatile and can meet your various cleaning needs!======================================packing list:3 brush heads of different sizes======================================>>Bill--We issue invoices for all products.--After receiving the product, you can send us purchase information so that we can provide you with the information you need.>>Warranty and after-salesWe only provide warranty against manufacturing defects, if you have any questions or problems, please contact us via purchase message, no need to file a claim We have full guarantee, we will do our best to help you and provide you with the best solution!============================================================================