Pro Series Exercise Ball Slow Deflate Red 55 cm Walker Wheels Sleek curves and clever practicality Style:Right Ear Sleek curves and clever practicality never go out of style * The shelf provides a generous surface that can be removed for easy cleaning while the reliable support rail is always within reach to offer a helping hand * Discreet wall stems with concealed screws * The corner shelf features a beautiful shatterproof surface that resists the growth of mold and bacteria * Integrated support rail with a 350 lbs 159 kg weight capacity * 6 Deluxe 180 degree * Measures the range of motion of metacarpal phalangeal and interphalangeal joints * Head has two opposing scales marked in 5o increments * Features a linear scale in both inches and centimeters on arm * Deluxe model features a larger protractor head and full 180o scale for more accurate readings * 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