Item specifications: BPA-free (without bisphenol A) manufactured without plasticizers Material: PVC Non-slip thanks to roughened surface With air pump for hand or foot operation Sealing plug Size: 25 cm [Durable]: Exercise balls are made of professional PVC with 2000 micron thickness and offer the best training experience. They can be loaded with over 2200 lbs. You can sit on it or lie on it, just enjoy. [Anti-burst]: The exercise ball has a unique anti-burst design and a 2000 pound anti-burst design that can withstand the toughest workouts. [Non-slip]: The yoga ball's surface with horizontal lines for a safer grip and to prevent it from slipping. Easily perform yoga, pilates or general strength and balance training by wiping the surface with a simple cloth. [Functional]: Suitable for exercises such as yoga or pilates or abdominal training and pregnancy training or as an office ball chair to improve your posture and support your back while working, and improves balance, coordination and flexibility. [Perfect as a gift]: The package includes an exercise yoga ball, user manual, air pump, plug, removal tool, measuring tape.