Package Includes : 1 X Mini Soft Yoga Ball With Straw Mini Exercise balls are perfect to help to improve stability and coordination, maximize strength and endurance, strengthen the core muscles. Easy to inflate with tube. Small diameter makes the ball easy to carry and store. Made of soft, flexible, durable PVC. Anti-burst and non-slip 8 inch diameter ball is designed to remain elastic and squishy when fully inflated You can blow wellness ball with the straw attached and depends on the purpose of use to adjust the soft degree yourself, which can provide some amusement while inflating. This swiss ball is suitable for aerobic physio, good equipment for your legs, arms, back, hamstring, knee, thigh, cardiovascular, shoulder, chest and so on.