The RAZE 3 in 1 Plyo Box offers a stable platform; allowing you to increase your speed & develop your power for increased athletic performance. Offering incredible versatility; you can switch between 3 different heights with one box thanks to its clever design. One side measures in at 20 (51cm) while additional 24 (60cm) & 30 (75cm) sides mean you can enjoy more exercises; target different muscle groups & build on your overall ability. Featuring solid wood construction with a reinforcing centre-piece; the Plyo Box is built to last. The box comes flat packed. Easy to assemble; all parts/fixings & easy to follow instructions are included. WARRANTY One year.