· Features a solid one-sided stainless steel chestpiece for both low and high frequencies auscultation.  · Non-chill diaphragm retaining rim for patient comfort· Large internal bore stainless steel binaurals· Tapered inner bore provides outstanding sound transmission· Extra thick tubing walls minimize extraneous noise· Overall length 28"· Accessory box includes one pair of firm eartips ,one pair of soft eartips and one diaphragm· Individually packaged in an attractive gift box with lined foam · Latex free