3-in-1 Plyo BoxOur Industrial Athletic Plyometric Box conforms to the standard box jump workout heights of 50cm, 60cm, and 76cm (or 20", 24" and 30") used for functional fitness workouts or plyometric training for speed and power development. Constructed from 17mm marine plywood, the boxes are durable and very grippy, with a non varnished surface because it does not need it. The design is CNC machined for ultimate accuracy. Plyometric boxes are a staple training