Eco-friendly Material: Made of High-density EVA and 1680D Material, premium Hard EVA to provide durability and a long-lasting performance. | Perfect Fit: Specially designed for your Kensington Expert Wireless Trackball Mouse (K72359WW). | Convenient Design: Comfortable hand grip for easy portability,Comes with specially mesh pocket for other accessories,Smooth but strong double zipper are easy for opening and closing, giving you a better using experience. | Great Protection: The Case is semi-waterproof,anti-static, shockproof, Stylish and Durable,prevents any damages or scratches caused by accidentally bumping,dropping, secures the device in good condition on travelling or outdoors. | For sale is case only(device and accessories are not included).