Standard Convoluted Pillow * Designed with 2 slightly different foam rolls to allow different levels of support * Air circulates through pillow while relieving any pressure points * Urethane core is hypo-allergenic and covered with a soft solid white poly/cotton blend cover * Convoluted foam pillow has eggcrate-type surface * This pillow does NOT compare to the Wal-Pil-O * The Wal-Pil-O is a 4-in-1 pillow that has been clinically proven to help reduce pain * Dimensions: 23 1/2 x 14 x 4 *