Zebratown 45cm Pink Fitness Exercise and Stability Ball Durable Anti-Burst 45cm Exercise Gym Ball. Made from EU approved phthalates free pvc & contain no heavy metal elements. Safe to use. Inflation instruction: Take out the inserted white plug (air stopper) from the ball, insert the tip of the pump and inflate the ball to good size, and then replace the white plug back into the hole quickly. Enjoy! Balance ball rated up to 2000kg,with pump 45cm ball is suitable for a user height up to 5'0" Yoga ball sports training helps the body's ability to balance