DuoDerm® Extra Thin Hydrocolloid Dressing, 3 x 3 Inch, 1 Box of 20 Jobst Relief 30 40 Knee Hi reducing heat and moisture buildup MSHQ 1594XL reducing heat and moisture buildup Bubble Pad Only Without Flaps * The pump and pad system is a new generation that is designed to help protect against the formation of pressure ulcers * This state of the art pump has a high flow output to inflate pads rapidly * Changes tissue interface pressure points every five minutes * Minimizes the risk of pressure ulcer formation by providing pressure reduction at critical anatomical sites * Cost effective solution * Compatible with any conventional bed * Head and foot flaps will secure pad to mattress * Very quiet will not disturb the patient * Replacement pads will fit most alternating pressure pumps * Notice to California Consumers: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm * Vapor permeable outer film to provide an occlusive moist environment 3 x 3 inches