3 shapes of brushes can be used to clean bathtubs, grout, upholstery, bathroom surfaces, floors, tiles, showers, toilets and carpets, tires and more. | The kit contains a softer nylon brush,Attaches to your favorite cordless drill and comes in different sizes and shapes for different applications | All three brushes feature an extended attachment link bar with sliding joints and magnets to lock brushes in tightly and allow for precise operation | It is recommended to use a household electric drill, The speed is more suitable between 1000-2000rpm, the kit does not include the cordless drill | Our products all have a 90-day unconditional return period. If you are not completely satisfied with our product, we will give you a full refund or send a replacement at the buyer's request.