From the Science Museum shop
This inflatable Roller Wheel is the perfect size for youngsters to climb through or roll around in. Inside is a collection of colourful balls that jiggle and bounce around as the wheel rotates, so providing visual and auditory stimulation as well as helping to develop children's co-ordination and physical strength. Made from durable plastic, the wheel is suitable for both indoor and outdoor play and has an inner diameter of 99cm.
