Product Dimensions: diameter 50 cm, height 30 cm Color: as shown Material: PVC Package content: 1 * Yoga ball, 1 * Pump Environmentally friendly material, anti-burst design: This donut ball is made of more environmentally friendly PVC, free of BPA, heavy metals and non-latex. The PVC is durable with anti-burst design, very safe. Non-slip and portable: The donut exercise ball with anti-slip lines makes sitting or exercising much safer. It's lightweight and easy to carry, you can take it anywhere by blowing it off and inflating it with the pump. Improve balance and strength: The inflatable donut ball will improve core strength, balance, coordination and flexibility. It adds instability during exercise to engage stabilizing muscles to increase fitness effectiveness. Well-designed, perfect gift: You can use it to lose weight, play with your baby and have happy parent-child time. Specially designed to prevent the balance ball from rolling or sliding when sitting or storing. With it, you can sit down or do various balance exercises more confidently. Widely used: It can be used not only as an exercise ball, but also as a ball armchair in gym, office, home, kindergarten and classroom. Such as pilates, yoga, abs and back training, gymnastics, bodybuilding exercise, core training, balance training, physiotherapy.