This Yoga ball is special designed with multiple particles to massage muscles and relieve tension for adults and develop sensory ability for children. Work effectively in helping you get into the right yoga posture and strengthen your muscles. Perfect for yoga, Pilates, abdominal exercises, pregnancy gymnastics, chest presses, sit ups, core training.<br/>Features:<br />Durable and eco-friendly PVC material, free of BPA &amp; heavy metals.<br />Multiple massage points help to cultivate baby&#39;s perceptual ability and avoid slipping when exercising.<br />Anti-burst design make it be deflated slowly instead of bursting when punctured.<br />Not only great for training &amp; Yoga, but also can be used as an ball chair. <br />Can be pumped up in minutes with provided air pump.<br />A must have for reducing back pain, strengthening your core muscles, promoting balance and losing weight.<br/>Specifications:<br />Material: PVC<br />Color: Blue<br />Ball Size: 55 cm / 65 cm / 75 cm / 85 cm ( optional )<br />Ball Weight: 700 g / 900 g / 1000 g / 1200 g<br />Package Size: 23 * 13 * 16 cm / 9.1 * 5.1 * 6.3 in (For 55-75cm Yoga Ball )<br /> 26 * 15 * 18 cm / 10.2 * 5.9 * 7.1 in (For 85cm Yoga Ball )<br />Package Weight: 800 - 1300 g / 1.8 - 2.9 lb<br/>Package List: <br />1 * Yoga Ball<br />1 * Pump<br />1 * Ball Plug<br />1 * Plug Removal Tool