Head Blood Pressure Stethoscope With Gift Box Case

This stethoscope advantages are as follows:   1.our ears hang for copper material, durable.The aluminum is brittle crack easily.   2.we stethoscope shrapnel is 5 mm in diameter, ears hang good balance.Than 4 mm, easily around and uneven.   3.we head diaphragm  is Resin material that is said "glass diaphragm" conduction effect is good, durable.The sort of white than domestic diaphragm, easy peeling, cracking.   4.we have professional inspectors for 100% of full inspection before shipment.   Silver plating, spring inside the double tube, finger type design on the back, head band against the cold.   Pressure is different, the hearing effect is different, ears hanging ear canal design       Head diameter: 4.5 cm   Stethoscope overall length: 75-78cm       Product material:   Ears hang: stainless steel   Ears hang spring leaf: stainless steel double shell diameter, 5 mm (this poor stethoscope shrapnel is only 4 mm, shell assembly stethoscope, wear on the ear after yi ran side and easy broke