Ergonomic wireless trackball, the M575S. - Model Name: M575S - Brand: logicool - Type: Wireless Trackball - Color: Graphite ---------- Purchased on Amazon in July 2024. Used for about 6 months. Includes box and instruction manual. Since it's been used, the trackball's movement may be less smooth than when new. Please be aware of this before purchasing. As shown in the red frame in photo 5, there are marks left from the anti-slip tape that was attached. Please note that we do not accept price negotiations, complaints, or returns after purchase. Thank you for your understanding before purchasing.