Specifications: A. The brush of portable washing device is a movable tool, it is so easy to mount on the device that the whole process can be finished in several seconds. When you are washing the road sign and glass window, the common brush is enough, however for washing car, a special car brush is much easier for you to clean. B. Potable washing device changed the traditional way of car washing, using highly efficient and environment protected detergent, coordinating with INTEREST brand cleaner, completely get rid of the dirts, stains and putties on the car. The car brush has been treated specially, can keep the surface of car continuously shining. This washing devise is a kind of half automatic product, rather easy to operate. One person is enough to finish the full process of cleaning a dirt car in 10 minutes.