3M™ Ace™ Elbow Support, Breathable, Adjustable, 1 Each Biofeedback Units Accessories 12 W x 34'L x Style:1 Pair (Left & Right) 12 W x 34'L x 7 H * A bed positioning wedge contoured to an optimum 30¯ * Provides optimal 30 degree angle of incline for relieving pressure on hipbone and coccyx * Wedge is comfortable and made from convoluted foam * Low Shear II wipe clean outer cover reduces skin damaging friction * Can be disinfected for infection control * Non slip bottom keeps wedge securely in place * Super Soft Convoluted foam surface * * require increased sitting stability It has a breathable neoprene material that helps maintain the skin condition It has a comfort sleeve that allows for easy application