Tiger Claw Wood Breaking Board - Breakable Board in 8 mm, 12 mm, 18 mm thicknesses Made from lightweight laminated real wood called Paulownia, these boards are designed to break safely and easily. Board breaking is a common way to gain confidence, skill and power. These composite boards are an inexpensive way to train beginners and children Like any martial arts practice, breaking should be practiced under the supervision of a qualified master.