* 4 Different Sized Boxes for Progressive Plyometric Programmes * Sizes Available: 15cm (Green) , 30cm (Blue) , 45cm (Red) and 60cm (Black) Total Height of Full Stack: 150cm * Velcro Strapping and Built in Handles for Secure Handling. * High Density Eva Foam Construction. * Wide Base for Additional Stability. Each Plyometric box has a different jump height, allowing users to progress their training over time and vary training tailored for specific needs. The heights range from 15cm (Green) , 30cm (Blue) , 45cm (Red) and 60cm (Black) . Each box can be stacked on top of each other to create even more customisation and variability to training demands, allowing for highly tuned plyometric training that develops speed, strength and power for sports involving high impact jumping such as running, basketball, tennis and football. Each plyometric jump box has a strong Velcro strap that secures the boxes together to ensure the boxes do not separate during use. Each soft plyometri