3-In-1 Plyo Flat PackOur 3 In 1 plyometrics box gives you a 20", 24", and 30" box all in one. Our plyo boxes are cut using a precise CNC machine here in Georgia. All boards are notched using tongue and groove technique including the middle support board for ultimate strength. Edges are rounded which adds a nice touch (is easier on your shins as well). Screw holes are pre drilled and each plyo box includes industry standard deck screws. Also available in a Mini 14"x18"x20"