The Junior GBox includes a velcro belt, one 5″x5″x5″ (Medium) and one 3″x3″x5″ (Mini) G boxes. The belt is designed to fit juniors, kids and petite adults with a minimum size of 24 inches and maximum size of 36 inches around the waist. Please measure your waist above your hip line. One box has a white stripe and each is made of versatile neoprene. A velcro attachment on the back of the boxes enable you to attach it to the belt at your seam line.