I bought this a few years ago and forgot about it. It's unused, but it has aged a bit, and I feel like the tube part is a little sticky. Please use it after cleaning. Only those who understand this are welcome to purchase. I plan to ship via Yu-Pack, but if it's okay to ship without the box via Yu-Packet Post, I will discount it by 500 yen. #Stethoscope #Sonority #IGM #Unused #Pink