This is a used GRX Medical Cardiology stethoscope.
It looks to be a copy of my Littman Cardiology III.
Like the Littman, it has a double tubing for sound isolation and increased volume. Normal and pediatric diaphrams.
Ear tips are in good shape, tubing is good. The metal tubing is a little scratched. It has a Littman diaphram cover on the adult side.