The product is a vintage IBM Personal System 2 mouse from 1989, which is being sold as untested and for parts only. This item is ideal for collectors or enthusiasts of vintage computing technology. The IBM brand ensures a sense of reliability and nostalgia for those who appreciate the history of computing.)READ)…. Product has not been used. Instructions which includes disk are unopened but the product has some staining. And there is staining to the box.Have questions please E-Mail.