Yes4All Stability Disc with Hand Pump &ndash; Multi Color Available (13 & 14 inch) Suitable for everyone - especially for those who sit all day! Imported 13 INCH DIAMETER X 3 INCH HEIGHT: Ideal size for standing on for fitness exercises and as wiggle or wobble seat cushions for your chair TEXTURED, NON-SLIP SURFACE: Featured with raised massaging bumps on one side to maximize massaging effect and smoother bumps on the other to provide a firm grip HAND PUMP INCLUDED: Come with a hand pump to easily inflate and deflate to your preferred level of firmness GREAT FOR ALL FITNESS LEVELS: Ideal for beginners to advanced trainers in various performances like standing, kneeling, sitting and push-ups to develop balance and stabilization, relieve back pain and improve posture 1 YEAR WARR  60 DAY RETURN: Make your special ideal presents for balance trainees or any fitness enthusiasts. Our stability disc stands up to 1 YEAR warr or if you think its not for you, contact us within 60 days of purchase