Pro Series Exercise Ball Slow Deflate Red 55 cm Jobst Opaque 30 40mmHg Knee * Includes: LOW PROFILE Single Jobst Opaque Sensitive * Includes: LOW PROFILE Single Compartment Cushion two way stretch cover hand inflation pump repair kit and operation instructions This versatile pillow offers choice of four ergonomic sleeping options to provide the most comfortable and supportive fit * Pleated side offers greater contoured support with a high and low end providing two options for a comfortable and supportive fit * Peaked side offers a flatter surface providing a choice of two higher firmer sleeping heights * Optimal Air Flow Both pleated and peaked surface textures promote air circulation reduce build up of moisture and help to reduce pressure points * Includes a machine washable pillow protector * Firm Support * 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