Apple Desktop Bus Mouse II / Apple / Genuine / Mouse for old Macs This is from the old Mac era. There is discoloration and dirt. Since there is no environment to confirm operation, please consider it as junk. I am selling a large collection of Mac-related items one after another to prepare for the end of life. If you are interested, please follow me. P.S.: Please allow the following. When listing items, I will vacuum up dust and wipe off light dirt with a rag, but I am unable to perform thorough cleaning using neutral detergent or remove stains due to my advanced age, which has resulted in a decline in my mental and physical strength, as well as my eyesight. Thank you for your understanding.