Premium Material: Yoga ball made from professional grade PVC material, anti-burst and anti-slip for safety. Exercise Ball: Balance ball ideal for Pilates, yoga, back and abdominal training, gymnastics, and full-body shaping. Stability Ball: Yoga ball helps improve posture and relieve lower back discomfort; suitable for pre- and post-workout stretches. Easy to Inflate and Store: 9-inch ball can be inflated easily using the included tube, by mouth, or with an air pump. Home Gym Equipment: Practical and functional exercise tool for men and women, suitable for home, gym, or office workouts. Specification: Material: PVC Size: 20cm–25cm (7.87–9.84 inches) Package Includes: 1 Yoga Ball 1 Blowing Tube Note: Slight measurement variations may occur due to manual measurement and screen display differences.