A hard-wearing plastic airflow ball attached to an ankle ring. This game will increase individual jumping skills and help co-ordination. Set of 6. 1 each of red blue green yellow orange and violet.Rope length: 64cm.Ankle hoop diameter:14cm approx. (not adjustable) Ball Diameter: 9cm.Age suitability: 5 years+.Warning! Not Suitable for children under 3 years. Risk of strangulation. Use under adult supervision.