AppleRound Space Hopper Ball with Air Pump: 15in/38cm Diameter for Ages 3-5, Hop Ball, Kangaroo Bouncer, Hoppity Hop, Jumping Ball, Sit & Bounce (Soccer Ball Pattern) Inflated size appr. 38cm/15in in diameter. Durable Grab n' grip handle. Maximum sustainable weight of 160 pounds or 70kgs. Age group 3-5 years. Ideal for indoor and outdoor use. Age under 3 should use under direct supersion of an adult. Includes a two-way hand pump. Ball is delivered deflated. Presented in color box and ideal as a gift. Lab tested, contains no US banned phthalates and heavy metal elements. Conforms to the safety requirements of EU EN71, US CPSIA & ASTM F963. 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. Bounce! This Hopper Ball is for children age 3-5 (also known as Kangaroo Bouncer, Hippity Hop, Hoppity Hop, Hop Ball, Sit &amp; Bounce, Jumping Ball). The ball can be inflated to 15 inches (38 cm) with a regular hand pump. A 9-inch two-way action pump is included for FREE! This Hop Ball is suitable for indoor and outdoor use. It will keep children active, out in the fresh air for hours! Lab tested, the product fully complies with EU &amp; US Toy Safety Standards. It contains no US banned phthalates and heavy metal elements. Safe to play! Recommended Ages: 3-5 yrs. Children should play under direct supervision of an adult. Maximum sustainable weight of 160 pounds or 70 kg. Take out the inserted white plug (air stopper) from the hole in 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. Bounce! A: The inserted white plug (air stopper) in the ball must be removed first! Inflation Instruction: Step 1: Take out the inserted white plug (air stopper) from the ball. Step 2: Insert the tip of the pump into the mouth (built-in variable aperture). Step 3: Pumping the ball to proper size (normally 5 minutes for 38 cm ball). Step 4: Quickly replace the white plug back into the hole to stop air leak. Done! A: Ball is made of rubber which will become much contracted being packed tightly into the box. Thus, keep pumping to stretch the rubber is the key. If it is hard to reach suggested ball size during 1st inflation, users can leave the ball as it is for a day, and then pump again after the material gets fully stretched. A: Should Pump be faulty or ball defective, please &#039;Contact Seller&#039; directly (other than Amazon-Customer-Service) from Amazon Buyer Central against this order for a replacement or refund. Seller aims to provide hassle-free after-sales service and usually replies most emails in 12 hours.