Item Specifications: BPA-free (without Bisphenol A) made without plasticizers Material: PVC Non-slip thanks to roughened surface With air pump for hand or foot operation Sealing plug Size: 25cm [Durable]: Exercise balls are made of professional PVC with 2000 microns thickness and offer the best stirring experience. They can load over 2200 lbs. You can sit on it or lie on it, just enjoy it. [Anti-Bust]: Exercise ball features a unique anti-burst design and an anti-burst 2000 pound design that can withstand the toughest workouts. [Non-Slip]: Yoga Ball surface with horizontal lines for a more secure grip and to prevent slipping. Easily perform yoga, pilates or general strength and balance training movements by wiping the surface with a simple cloth. [Functional]: Suitable for workout like yoga or pilates or abdominal training and pregnancy exercise or as an office ball chair to improve your posture and support your back while you work, and improves balance, coordination and flexibility. [Perfect for Gift]: Package includes an exercise yoga ball, user manual, air pump, plug, remover tool, tape measure.