Vestibular Wedge Large Wedge 15 x 15 New Arrival Model Number: Digital Upper Wrist Suction and Aspiration Systems Model Number: Digital Upper Wrist Blood Pressure 5 Standard 140 degree * Measures the range of motion of metacarpal phalangeal and interphalangeal joints * Head has two opposing scales marked in 5 degree increments * Features a linear scale in both inches and centimeters on arm * Deluxe model features a larger protractor head and full 180 degree scale for more accurate readings * Shipping Carton Size: 9 L x 6 W x 4 H Large Wedge 15 x 15 * Inflatable wedge requires active participation from user to assume correct sitting posture * Wedge combines dynamic seating and static positioning * Inflate or deflate wedge to vary the degree of difficulty *