Black 28 * Lightweight and easy-to-carry * 28 tubing * Chestpiece shape designed around blood pressure cuffs and body contours * Bell with tuneable diaphragm that alternates between low & high frequency sounds without the need to turn over the chestpiece * Single lumen tubing in a range of colors * 2 year warranty * Shipping Carton Size: 12 L x 10 W x 6 H