Vestibular Wedge Large Wedge 15 x 15 New Arrival Two way stretch top enables the 00298E Two way stretch top enables the cushion cells to conform to the individual's body shape without diminishing product effectiveness or therapeutic value * The cover has a two way 100% Polyester top material that is a durable heavyweight fabric with a soft feel * The side material is composed of a 3 layered knit spacer fabric which provides superior air circulation that ventilates and cools the user * The fluid proof solid non skid base material offers a durable easy to clean surface * The cover has the added feature of Velcro© straps placed on the bottom to allow the user to attach the cushion to their chair * Encased foam is stitched to the cover for added comfort around the leg trough areas * Cover is machine washable * Weight: 1 Model Number: Digital Upper Wrist Blood Pressure 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 *