【Price negotiations are welcome!】 This is the MX ERGO wireless trackball mouse from Logitech (Logicool). It is not the successor model. Operation has been confirmed, and it has been cleaned with disinfectant wipes! It has been used with care, so it's incredibly clean, and you wouldn't think it was a used item! In my opinion, it's in very good condition! In addition to price negotiations, please feel free to ask any questions in the comments section! Adding more photos is also welcome! Also, please be sure to read my profile before purchasing. By purchasing, you are deemed to have understood the contents of the description and profile. Please consider it!