Free Delivery Made to order – delivery takes up to 15 working days The AirTumble 4 section vaulting box, is made from 4 segments which can be used individually or together. This can be done simply by placing each section on top of each other and connecting them with the hook and look connecting flaps, it is constructed from a high density, shock-absorbing PU foam that is wrapped in a heavy-duty, flame retardant PVC cover for durability. Each section comes with carrying handles for easier transportation and the foam construction makes it a lot safer to use than a traditional wooden vaulting box. https://airtumble.co.uk/product/4-section-vaulting-box/