Professional grade Features: extra thick PVC: 2000 micrometers Thickness, make you feel secure when using it non-slip matte surface: for a high grip anti-burst tested: first-class processing make sure it Rated up to 2200 lbs Available in 3 sizes (ranging from 55cm - 75cm) and multicolor for the perfect look and fit. Inflation notice: 1. ​​Let the ball sit at room temperature for two hours. 2. Insert the tip of your foot pump into the ball's air valve and work the pump. 3. Inflate the ball to About 80% of diameter initially. Wait a further 24 4. Hours before inflating to the recommended size. You should avoid using the ball within the first 24 hours. 5. Pumping It up again to the recommended size. 6. Insert the plug and the let the ball sit for another day. ​​ Note: - store your ball indoors at room temperature - clean your ball with a soft cloth or sponge and mild soapy water if needed. - keep away from sharp objects​