I am selling this mouse because I purchased multiple units and have extras. ⚪︎ Unused and unopened (see photo 5). ⚪︎ For the M-size mouse, please refer to the hand dimensions in photo 4. ELECOM Wireless 2.4GHz Mouse Silent Wireless Mouse 5 Buttons Right-Handed Antibacterial M Size EX-G Black M-XGM30DBSKBK Product Overview Features ■ Wireless 2.4GHz Mouse Silent Wireless Mouse 5 Buttons Right-Handed Achieves the ultimate grip Windows 11 10 mac Chrome Compatible Antibacterial M Size EX-G Black ■ A 5-button mouse "EX-G" that achieves the ultimate grip through joint development with doctors. ■ You can use it simply by naturally placing your hand on it, so you don't need to use extra force, and it achieves a comfortable feel that minimizes the strain on both your wrist and fingers. ■ To achieve a "feeling as if you're not holding it," we've adopted a design with rounded corners and seamless construction. In addition, we aimed for an even more evolved grip, such as a seamless operational feel that makes it easy to access each button. ■ The "EX-G" series is a certified product of the "AskDoctors Evaluation Service," a quality standard evaluation by doctors conducted by m3, Inc. ■ 99% of 100 doctors recommend this product. ■ Silent switches developed by Panasonic Corporation are used for the left and right buttons. It achieves high silence without compromising the click feel and durability. ■ You can use it without worrying about the clicking sound, even when operating a computer during meetings or working early in the morning or late at night while working from home. ■ Antibacterial processing suppresses the growth of bacteria attached to the surface of the mouse and keeps it clean. (Antibacterial range: mouse housing, wheel part) ■ *This product has the performance to suppress or inhibit the growth of bacteria on the surface and complies with the antibacterial test specified by the Japan Standards Association. ■ It is a wireless type that can be used immediately by simply inserting the receiver into the USB port of your computer. ■ The receiver is ultra-compact and can be stored in the mouse body, making it less likely to be lost and convenient for carrying. ■ It is a 5-button type with "forward" and "back" buttons, which are convenient when operating websites and folders. ■ The M size fits perfectly for those whose length from the tip of the middle finger to the bottom of the palm is 165-180mm.