ABN Cardiology Stethoscope. Extra deep bell completed with non-chill ring on both the bell and diaphragm sides for patient comfort. Super sensitive diaphragm for low frequency sounds. Y Tubing with double leaf internal spring is designed to be soft and flexible. Binaurals and chestpiece are made from stainless steel and set at an angle for greater comfort. Supplied with two pairs of soft deluxe eartips in small and large size and a spare diaphragm. Available in a range of colours.