Aspiration pump of the otolaryngology doctor's unit which I have been using for 15 years has recently gone bad. I ordered the contractor for repair but I was refused that it is impossible because there are no more parts. In such a case, I learned that there is a site called Monotaro. After searching, there was a motor I wanted. I bought it because it was just under the campaign. It was delivered by Takkyubin and exchanged. The exchange was extremely easy. I felt impressed when I moved smoothly without sound. Thank you very much. I think that I will ask for the necessary things from now on, thank you.