3 IN 1 CROSS FUNCTIONAL FITNESS WOODEN BOX The Morgan Wooden Plyometric Box meets the required standard box jump workout heights of 51cm, 61cm, and 76cm (or 20", 24" and 30"). Wooden plyometric boxes are mostly used for functional fitness workouts or plyometric training for speed and power development. Manufactured from 17mm marine plywood, the boxes are durable and offer a superior gripping surface. The overall cutting and template layout is CNC machined for ultimate accuracy. 3 different heights, one box marine plywood allows for both internal and outdoor use Easy to assemble Flat packed on arrival Re-enforced internal structure to ensure the plyo box can hold heavy body weights jump after jump