Features: The M310 Mouse Battery Cover is replacement for original, ensuring your mouse functions seamlessly and securely. from plastic, this battery cover offer a snug fit, making installation easy while safeguarding your batteries. for M310 M310T mouse, especially those in need of replacing their battery cover. for use in offices, homes, or any setting for M310 M310T mouse is utilized, providing performances. Enhanced your mouse longevitys and maintain functionality with essential accessory, to meet the needs for M310 M310T user. Specifications: Materials: Plastic Size:6x5.3cm/2.36x2.09inch Package Includes: 1PC Battery Cover note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!