Body zorbs come in 3 main sizes which are, Small, Medium & Large. The Small are 1.2m in diameter whereas the Medium are 1.5m. The Larger size are 1.8m in diamter and are for larger users or for a user over 6'2" and with a chest size of 55' +. There are also 2 material choices being PVC and TPU. Both PVC and TPU products come in 0.7mm and 1mm thicknesses. Budget and Standard grades are PVC whereas Commercial and Deluxe are TPU products. For additional info please see our care section of the website.