Doctors Stethoscope - Offers acoustical excellence in a traditional design, It s Innovative feature That ensure it is considered one of the most appreciated cardiology stethoscope in the world Included; the stainless steel/Brass chest piece diameter 36 to 47 mm diameter with extra deep Cone shaped bell for a superb low frequency response, stainless steel/Brass double inner spring Binaural, and floating diaphragm for unsurpassed amplification durable, elegantly mounded PVC Black tubing, Colour co-ordinates non-chill ring and diaphragm retaining ring for excellent Patient comfort while adding attractiveness. The stethoscope supported with special foam Lined box with spare one piece of earplug and one diaphragm.