Ader 20" 24" 30" Three in One Wooden Plyo Box Platform Ader 3-in-1 wooden plyo box: (20", 24", 30") 3 heights in one box Heavy duty plywood construction with 24 steel wooden screws Easy to assemble Good for all kinds of exercises, training and warm ups NO shipping to Alaska, Hawaii, or APO/FPO addresses or PO Boxes