Thank you for viewing. This is a brand new, unopened item. The following is a quote: Fatigue-resistant for arms and wrists / High-performance trackball mouse from the Logitech MX series Adjustable tilt angle of 20° / Use the mouse in a natural hand position, reducing muscle tension by 20% compared to a regular mouse Precision mode button to change tracking speed / Instantly switch between speed mode and precision mode with the push of a button Tilt-equipped precision scroll wheel / Horizontal scrolling, middle click, and left/right tilt are possible We will ship promptly on the same day or the next morning after the transaction is initiated. * Please note that if the item is out of stock, we may not be able to fulfill the order as we share inventory with other platforms. Please rest assured that we do not have any pets or smokers. As this is stored by a private individual, there may be minor scratches. Please refrain from purchasing if you are concerned about this. We aim for a pleasant transaction for both parties. Thank you for your cooperation. We generally do not accept returns to prevent product substitution, so please understand. We will consider price reductions, but we will not offer excessive discounts, so please understand. We also offer a follow-up discount. Please feel free to contact us.