1Five different sizes of automatic detail brushes can meet any cleaning needs. Smaller detail brushes can enter all small cracks, corners, lug nuts or narrow spaces. 2Larger detail brushes are suitable for cleaning the exterior and wider areas more effectively. Such as wheels, vents, car seats, engine compartments, dashboards, signs, etc. 3The brush head is relatively thick and can hold a lot of soapy water to help improve the cleaning effect. The automatic detail brush is very suitable for wet and dry use, and will not leave bristles after use. 4The bristles are soft enough to protect the surface of the object you are working on, without leaving scratches on the paint, but strong enough to remove all stubborn dirt. 5The car interior detail brush set uses solvent?resistant bristles. Even with repeated use, the detailed bristles are durable, do not fall off, and have no peculiar smell. 6The plastic handle will not swell or break due to prolonged exposure to water. Each car detail brush is numbered to help you distinguish the size. The handle adopts ergonomic design, so you won't feel tired after working for a long time. 7The handle is made of high?quality Abs plastic and contains no metal parts. If you accidentally hit the car, the plastic handle prevents scratches on the paint and surface.