What a great idea! A practice pad with the 26 essential rudiments displayed right on the top. Similar to a mouse pad, the Rudi-Pad can be rolled up, squashed, and still retains its shape. The pad is 8 1/2" in diameter by 1/4" thick. When Rudi-Pad gets dirty, put it in the washing machine on gentle, and it comes out clean. Rudi-Pad has great rebound and the rubber bottom keeps it from sliding about.