Cervical Butterfly (Bow Tie) Pillow w Removable Cvr White Underpads Reusable Silent pneumatic suspension provides instant Jobst Ultrasheer 30 40 ThighHi Silent pneumatic suspension provides instant height adjustment and 360o seat rotation without changing stool height The AF300 filter deodorizes the gas from the pouch and prevents liquids from coming in or going out of the pouch during use * The specially designed shape of our Butterfly Pillow gives your head and neck the support necessary for a good night s sleep * Helps ease muscles and nerve tension relieves stiff necks pain across the back and shoulders and morning headaches * Great for side or back sleepers * Filled with 100% soft polyester fibers * Machine removable washable white polycotton cover