Wooden Sandpaper Blocks - 13cm Long

IQ Plus Wooden Sandpaper Blocks are constructed of eco-friendly Siam Oak wood, and are designed to create a dry scratching sound when played. Hold the two blocks with the sandpaper surfaces facing each other and rub them together in an upward/downward alternating motion. The harder the blocks are pushing against one another, the louder the scratching sound will be. Ergonomically designed handles maximize comfort and control while playing.