Eko CORE 500™ Digital Stethoscope Rubber Ear Tips – 6 Pairs (Rainforest Collecti
Compatible with CORE 500 Digital Stethoscope, DUO ECG + Digital Stethoscope, and CORE Digital Stethoscope. – CORE 500 Digital Stethoscope, SKU COR501. – DUO ECG + Digital Stethoscope, SKU DUO101.