The A4 Tech Mouse Model SWOP-35 is a standard mouse with a gray color and optical tracking method. It features a noiseless wheel for easy scrolling and a wired connectivity. This mouse is designed by A4TECH and manufactured in China. With a compact size of 4" length, 2" height, and 2 1/2" width, it is a reliable choice for everyday use in computing and networking tasks. This is a new in an open box. Please look at all the pictures.