3M™ Ace™ Knee Support, Adjustable, Breathable, 1 Box of 12 Shoulder Immobilizers Supports WITHOUT TUCK IN FLAPS * 36 Undercast Padding WITHOUT TUCK IN FLAPS * 36 x 54 * A high quality reusable and washable underpad * Pads keep bedding clean and dry * Treated with EnGardeTM to prevent mold mildew and fungus * Designed for heavy absorbency * Controls and absorbs liquid * Quilted three layer construction will not slip ball or shift * Stay dry top layer * SK1997 features 18 tuck in flaps * Made of 100% brush polyester MID PROFILE 3 HIGH * 18 x 18 * Customized fit through the simple push of a knob * The revolutionary ISOFLO© Memory ControlTM offers shape fitting capabilities while the user is seated allowing quick and easy on demand adjustment to maximize function * The QUADTRO SELECT Cushion allows for quick simple position selection for every user while seated * Stability is enhanced by locking the air into place in each of the four quadrants * Easy to handle and carry at just 3 Perforations on the fabric allow air circulation to cool and condition the skin It fits on either knee for convenience