Features: Reasonable design makes it easy and convenient to install and remove, and it is a wonderful replacement for broken or old one Designed for Logitech specially, fit the mouse perfectly High quality for professional use, wear-resistant, durable and have a long service time Made of high quality material, ergonomic design and comfortable to hold Specification: Type: Upper Case + Lower Case Applicable Model: for Logitech Quantity: 1 Set Package: 1x Upper Case + 1x Lower Case Note Mouse case only, mouse in the picture is not included