1There are 5 sizes of detail brushes to meet various cleaning needs. Smaller detail brushes are great for reaching hard?to?reach places, cracks, corners and crevices to get complete details. Larger detail brushes help to clean the exterior and wider areas more effectively. 2The detailing brush bristles are durable and will not fall out. The brush head is thick and can hold a lot of soapy water for more cleaning action. Environmental protection, no unpleasant odor, reliable use. 3The handle is made of plastic and contains no metal parts. It will not expand or break due to prolonged contact with water. Adopt ergonomic design, won't feel tired after long working time. 4The bristles are soft enough to protect the surface you're dealing with and won't leave scratches in the paint, but strong enough to remove all stubborn grime. 5The detail brush set is very suitable for cleaning the inside and outside of the car, and it is practical and can be used for washing, waxing, cleaning, and dust removal.