Our art teacher had us buy this Speedball Hard Rubber Brayer for a Monoprinting class.  We were able to create interesting textures and artwork by using this brayer to spread acrylic paint on a gel plate.  I had other brayers at home, but they were too small to do a good job of spreading the paint.  This Speedball brayer did an excellent job, and was easy to clean by running it over damp paper towels in a tray.