Open Box. Bought for the pump. never used. ESSENTIAL ENDURANCE D8800 APP PAD is a medical-grade, heavy-duty Alternating Pressure Pad (APP) used with a pump (sold separately) to prevent bedsores and pressure ulcers in bedridden individuals, featuring interconnected air cells that inflate and deflate to redistribute pressure, made of durable vinyl with connecting tubes. Key Features & Purpose: Pressure Ulcer Prevention: Its main function is to provide intermittent pressure relief for individuals at risk of skin breakdown. Alternating Pressure: Air cells inflate and deflate in sequence, shifting pressure points away from the body. Bubble Design: Offers maximum loft and comfort, with 2.5-inch bubble height. Durable Material: Made from heavy-duty, 11-gauge vinyl to resist tears and punctures. Standard Size: Inflated dimensions are typically 78" L x 34" W, fitting most standard beds.