Blue Jay Adj Knee Support Open Patella Design Black Lg Xlg Kendall Dressings Provides a solid base for Extrication Supplies Provides a solid base for use with ROHO cushioning products * Made of polyurethane coated birch plywood * Easily fits under the cushion inside the ROHO cushion cover * Eliminates the hammocking effect of sling seats * Helps prevent internal rotation of the femurs * 12 Month Limited Warranty * Top Section: Two PieceWidth: 27 Length: 76 Head Section: One Section 27 x 27 * Raises 75 degrees * Body Section: 27 x 49 * Minimum Height: 18 * Maximum Height: 37 * Capacity (lbs): 400 lbs HCPC Code: A4467 * Color: black * Slip on neoprene knee support with two adjustable straps for excellent fit and comfort * Open knee design helps stabilize the patella * Nylon lined neoprene provides warmth flexibility and support * Hook receptive material allows for a customized fit around the thigh and calf * Size: large x large (16 19 ) * To size measure around the kneecap