Dynamic Stabilizer Ball Base Thermometer Raspberry 28 * One inch 16 7136 Raspberry 28 * One inch traditional pediatric bell combined with a floating diaphragm * Sold stainless steel chestpiece * Excellent acoustic seal and comfortable fit with patented Littmann Snap Tight soft sealing eartips * Comfortably angled anatomically correct headset * Patient friendly nonchill rim and diaphragm * Single lumen tubing in a range of attractive colors * 3 year warranty * 5 * Seat width: 14 * Lightweight portable gym ball base measures 19 5 diameter and fits a 45 55 65 and 75 cm exercise ball * Use base to stabilize exercise ball and prevent ball from rolling around gym * Use base with band or tubing for dynamic workout * Base has 4 built in anchors and 2 grooves for exercise band and tubing