Profile: Steele Supply Company deals with stethoscopes, diagnostic instruments, blood pressure monitors, medical bags, neuro instruments, surgical instruments and first aid items. We are an official distributor of 3M Littmann stethoscopes, Welch Allyn stethoscopes, Welch Allyn diagnostic otoscopes & opthalmoscopes, and Miltex surgical instruments. The 3M Littmann cardiology III stethoscope is characterized by outstanding acoustic performance and exceptional versatility. Its innovative design offers a tunable diaphragm on each side of the chestpiece. The large side can be used for adult patients, while the small side is especially useful for pediatric or thin patients. The Welch Allyn Tycos Harvey Elite cardiology stethoscopes have stainless steel chest piece and binaurals for optimal weight and durability. They have dual channel PVC tubing that provides separate sound pathways to each ear.