When will this ship Please allow 1-2 business days before shipping the Gymnic Fitball by Ball Dynamics . The 65cm Blue FitBall is made of a burst resistant material that will slowly deflate if punctured. A fun color for the classroom or the gym. Gym balls have been tested for weights of up to 600lbs. The exercise balls are designed to even use in the office. Gym Balls are ideal for strengthening and toning abdominal back chest arms thighs legs and buttocks Exercise Balls maximize stretching and increase flexibility Improve balance and coordination Use of these exercise balls provides a fun way to develop sensory motor skills and improve balance and trunk stability Gym Balls are colorful durable and easy to inflate are easy to clean and can be used indoors or outdoors The 'Fitball' by Gymnic makers of the highest quality exercise balls around is a well made product that is reasonably priced. Each Fitball comes with a Faster Blaster Air Pump for inflation and an exercise chart.