Take a break from boring. Welcome to the World’s best training target. The POWERSTACK™ patented stacking technology allows for almost unlimited combinations of resistance. Mixing and matching the different the different levels and stacks provides athletes with the flexibility to advance incrementally at their own pace. POWERSTACK™ boards are a more effective solution for teaching force through impact, accuracy,and power, all without the fear of board bite. The shock absorbing rubber accuracy target provides a focal point for maximum efficiency and helps minimize the negative effects of impact. The ergonomic design of the POWERSTACK™ boards makes it easy for instructors and students to hold by better aligning joint angles and providing a more forgiving target area for off-target strikes.Premium grip pads also provide shock absorbing properties and help maximize non-slip grip. Finally, forget all the difficulty of re-assembling the board with each break. Our quick snap locking design makes snapping the board back together quick and painless.