3-IN-1 Puzzle Plyo Box 20" - 24" - 30" The small 3 side plyo boxes save you money and space by combining 3 of the most common large size plyo"s into one. Ships flat to save on shipping costs, some assembly required. 3-N-1 plyo-metric box. 3 different box sizes in one. Just rotate the box to the side with the height you want and start jumping.The CFF box is built with a puzzle in mind. Each piece interconnects to assure stability and strengthMade of cabinet grade 3/4" plywood Pocket screws and fastenersAll edges are rounded over for safety Ships flat to save on shipping We recommend using wood glue along the joints. The glue will bond the wood, giving the box, the strongest possible bond at the joints.CONDITION: New