The French Fitness Wooden Plyo Box is a multi-purpose platform made of 3/4" plywood that provides a stable platform for jumps, steps, dips, presses, plyometrics, agility, stamina training, and core workouts. The interlocking pieces fit together like a simple puzzle and have pre-drilled holes to guide you through easy, no-drill assembly. Internal plywood bracing on all four sides uniformly distributes weight, and multi-point screw attachment ensures stability. This unique interlocking structure joints and reinforced internal structure increases the strength of the box. Each piece of plywood is sanded and smoothed for your protection, and gives the box a sturdy, rustic appearance. Two cutout handles make moving around your training space a breeze. With three different jumping heights at 16", 20" and 24", you can be sure the that French Fitness 16-20-24 3-In-1 Wooden Plyo Box will give you a challenging workout.