Our Foam Plyo Boxes are available in five different heights, with a landing surface of 35 1/2" x 30". Customize the height of your plyo stack with numerous combinations. Each thick foam platform is covered with durable vinyl and can be stacked and secured with strong Velcro flaps on all four sides. Heights are clearly marked on the sides. Handles with reinforced stitching to help in positioning the boxes, or moving them out of the way for storage.