Improve your speed and power while getting a heart-pumping, muscle toning workout with ProSource Plyometric Jump Boxes. The 3-in-1 plywood box is designed to give you three jumping heights and ability to perform multiple exercises. Just turn it over or on one end to make it shorter or taller to suit your needs. The sturdy plywood box is perfect for CrossFit boxes and WODs, garage gyms, and any other workout facility for long-lasting performance that will enhance a well-rounded exercise routine. Perfect for step ups, box jumps, lateral cross overs, push-ups, dips and more. All edges are sanded and rounded for safety, and two cut-out carrying handles make it easy to move around. Boxes include screws with pre-drilled holes and detailed instructions for easy assembly.