Can be used for many balance and coordination exercises, e.g. with several children on the roll, running in circles, doing forward rolls in it, as a goal for balls, for diving through, etc. Covered in a durable material, (87% polychloride, 13% polyester) of synthetic leather quality, washable with hook-and-loop strap. When opened out, can be used as a mat. Core made from 10-cm-thick foam. Inner circumference approx. 280 cm, width: 45 cm.