Gaiam Kids Balance Ball - Exercise Stability Yoga Ball, Kids Alternative Flexible Seating for Active Children in Home or Classroom (Satisfaction Guarantee), 45cm CHILD-SIZED BALANCE BALL: 45 cm (1.5 ft) kid-sized balance ball is perfect for exercise, yoga, fitness, homework, playtime, movie time or watching TV as well as active sitting at a desk in the classroom or at home ACTIVE LEARNING CHAIR: When used as a seat, the stability ball encourages kids to build a healthy posture and improve balance while the constant ball movements increase blood flow to the brain, improving focus & concentration ACTIVE ALTERNATIVE SEAT: Perfect as a flexible seating option for high-energy kids in classrooms or at home and is a fun way to reduce fidgeting, get the "wiggles out" and provides an outlet for excess energy INCLUDES: Child-sized 45cm orange balance ball and an easy-inflation air pump / Weight Capacity: 300lbs. INFLATION INSTRUCTIONS: It may be necessary to re-inflate the ball after initial inflation to allow the balls material to stretch to its final size. Inflate ball with air, let stand for 24 hours, deflate 50% then fill again to 45cm height.