Pro Series Exercise Ball Slow Deflate Red 55 cm Jobst Opaque 30 40mmHg Knee Full height adjustment and section MSHQ 1594XL Full height adjustment and section mobility so the patient can be placed in the proper position for maximum results with minimum effort * Top Section: Two Piece Width: 27 Length: 76 * Body Section: 61 x 27 * Minimum Height: 18 Maximum Height: 37 * 4 oz from foreign components * Meets or exceeds ANSI AAMI ISO 81060 1 * Gauge Warranty: Lifetime * Inflation Warranty: 3 Year * 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