【Easy-to-Use 5-Piece Set】 The detail brushes come in a set of 3 with varying stiffnesses, allowing for use in a variety of situations. They can be used not only for cleaning the interior of a car, but also for cleaning the body, wheels, and hard-to-reach crevices. 【Soft】 Using a soft brush can effectively prevent scratches. 【Medium】 Pig bristle brush. Primarily used for cleaning slightly harder areas such as car logos, car grilles, headlight gaps, and body crevices. 【Hard】 A hard car wash brush is the perfect brush for narrow gaps and stubborn dirt. With its powerful cleaning ability, it can clean dirty details such as wheel hubs and engine gaps. It is recommended not to use the hard car wash brush to clean the interior of the car. Y127