Build your own plyo stack! Customize the height of your plyo box with numerous combinations. Each thick foam platform is covered with durable, textured vinyl and can be stacked and secured with strong Velcro flaps on two 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. Sold separately or as a set. Landing surface is  35 1/2" x 30". Features: Vinyl covered foam to withstand hits and help prevent injury Customize your own plyo box height Velcro straps on 2 sides for added security 5 height options: 3", 6", 12", 18" 24" Set of 5 includes one of each size  Set of 4 includes our most popular sizes - 6", 12", 18" 24" Black