Solid acrylic cover designed to fit over all standard computer keyboards. Prevents cats and other pets from walking on your keyboardsize: 20"wide x 7-3/4"deep x 2-1/2"high Constructed of 1/8" clear acrylic and reinforced for extra strength our Pet Proof keyboard coverwill keep your keyboard clean and dust free.inside dimensions: 20" x 7.75" x 2.5" height