The Microsoft Wireless Optical Desktop 4000 Ergonomic Comfort Curve Keyboard & Mouse is a standard keyboard and mouse set designed for comfort and efficiency. The wireless connectivity allows for freedom of movement while the ergonomic design provides support for the wrists and hands. The black and silver color scheme adds a sleek and modern touch to any workspace. With features like a built-in zoom slider, tilt wheel technology, cushioned palm rest, and comfort curve design, this keyboard and mouse bundle offers convenience and ease of use. Made of plastic and manufactured in China, this set is a reliable and stylish option for computer users.