Sold as 1 Each. Raises screen to eye level. Tilt design brings the screen closer. Width: 10 inches (253 mm). Warranty: 1 year. Swivel base allows for easy sharing of screen and access to ports. Cablet outlet keeps your desk organized. Height: 6 inch (154 mm). Aluminum acts as a heat sink to cool laptop. Space to stash keyboard, clears up desk space when not in use. Depth: 7.5 inches (190 mm). Frees up desktop space. Compatible with all Apple MacBooks and most laptops. Weight: 3.6 pounds (1.63 kg).