"These large and colourful rollers are made of a durable semi-rigid plastic which is washable and easy to maintain. They be stacked, rolled, used to mark out an activity corner and climbed through and on. Both young and older children will discover many interesting ways of utilising them for a wide range of activities. The Acti-Roll 40 has a solid centre and nests onto the larger Acti-Roll 60, which is open to make a platform. Set consists of, Acti-Roll 40: 2 green, 2 red. Acti-Roll 60: 2 yellow, 2 blue. Acti-Roll 80: 1 green and 1 red."
Acti-Roll 10 Activity Kit - B071SLHLZK