Large: Measures 16.25W x 19.75L x 18.5H inches. Fits large litter pans up to 15W x 18.5L inches. Jumbo: Measures 18.25W x 23.5L x 19.5H inches. Fits large litter pans up to 17W x 22L inches. Solvit Products Solvit Products designs high-quality items specifically for pet owners who are devoted to their pets. Rather than make everything for pets, Solvit Products aims to be a leader and innovator in a select few categories. They make their top of the line pet products with unique features and superior functionality that can't be beat. A leader in pet products, Solvit has the most complete line of pet ramps in the industry and their innovative line of Kitty?scape? products includes a variety of accessories to mix and match to create your own custom piece perfect for your feline friends. From pet furniture to travel accessories, and products that help you and your pet stay active, Solvit has just what you need.