Deckers new Grip-Fit Brush blocks are designed to fit your hand. Ordinary wood blocks disregard the shape and size of human hands. Since Grip-Fit blocks are molded polypropylene, they can be made in a truly utilitarian, comfortable shape that has to be experienced to be appreciated. The polypropylene handle will not rot or mildew and is not harmed by caustic solutions. The Soft Teal Synthetic Bristles are good to use on younger horses.