Pro Series Exercise Ball Slow Deflate Green 65 cm. Stethoscopes 3 years (1 year for Style:Right Ear 3 years (1 year for spare parts) from the date of shipment under normal use and service 2Better audibility of high frequency sounds (adult side firm pressure) compared to Cardiology III can help you learn more about your patient Excellent Retail Packaging * This ball was specially designed to deflate slowly if punctured thereby reducing risk of injury * Provides improved stability at the points of body contact and enhanced performance due to the responsive surface design * Comfortable to sit on * Great grip thanks to built in latitudinal ridges and an outstanding texture that doesn t feel like plastic * Comes with two plugs an inflation adapter a measuring tape to help insure proper inflation and a poster detailing 24 exercises