With a brush with a strong back, it will not bend even if it is used many times, it is not going to be. Not only is the grip part easy to grasp in 3D shape, easy to put power. It is not a soft thing of a car wash brush, it is a pretty solid tip, it is a bargain that it is this product with 3M Company's products, this sturdy price is this price. Although I thought that "Why would it become useless immediately?", I purchased a replacement brush, but I am using quite a number of times, but I do not reduce it at all and there is no hesitancy, so if you buy for the first time, Was it good even after a while? And it is a pleasant miscalculation. It is a gem that recommends with confidence.