[Specifications] Materials: Body: Vinyl chloride resin Cover: (Outer fabric) Polyester 100%, (Cushioning material) Polyethylene Air pump, cap, cap remover: Polypropylene Actual product size: Product size (package size) H34cm x W24cm x D14.5cm Body size: Diameter: 46 x 27cm (when cover is worn, excluding handles) Individual weight: 1290g Country of origin: China Set contents: Body 1, Cover 1, Air pump 1, Cap 2, Cap remover 1 You can inflate it to your preferred firmness. - Bouncy seating provides core exercise. - Lightweight and easy to carry. - The flat bottom provides more stability than a round balance ball.