Pro Series Exercise Ball Slow Deflate Red 55 cm Stair Climbers Steppers Set Fit Buckle System This unique Instrument Accessories Set Fit Buckle System This unique system eliminates the need of adjustments each time the brace is applied and removed * This item makes the ideal laptop and dinner tray * 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