The 3-in-1 Wood Plyo Box gives you 20”, 24”, and 30” platform height options for plyometric workouts, all in one unit. Built for safe, effective plyometric training at any skill level. The quality 6-layer plywood panels are CNC machined for a secure, precise fit. Ships flat and assembles easily with all-purpose screws and quality wood glue. Useful in small garage gyms, large fitness facilities, or anywhere in between.