Send with one pump. Size: 65cm Color:Blue Material: explosion-proof PVC material. Bearing: maximum load of 200kg.Suitable for almost all people exercise、 including the need for rehabilitation. Have a good auxiliary injury recovery and rehabilitation of low back disorders、 particularly remarkable effect. The exercise is relatively safe、 not easy to damage. Can gradually restore and enhance the flexibility and balance、 adjust attitude、 cardiopulmonary functionMore suitable for yoga practice. Please note a variance within +/- 4cm is considered as within normal range.INCLUDED:1 x 55cm Balancing Stability Ball for Yoga + 1 x Pump.