Features: brand new and high quality It is brand new and has premium quality. It can replace your broken, non-working mouse metal hinge. Help you save costly repair charge. Fit for MX Ergo Wireless Trackball Mouse perfectly. Packing includes:1 piece Metal hinge. Specifications: Item name: Magnetic metal hinge Color: As the picture show Packing size: approx. 10x5cm/3.94x1.97in Quantity: 1PC Suitable for MX Ergo Wireless Trackball Mouse Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC Metal hinge