Raise Its are a great way to raise almost anything to make it more usable. Raise Its are made from extremely durable plastic and interlock as they are stacked upon each other. They also have recessed and raised points on the surface to allow casters, wood posts, and many other types of furniture leg styles to fit on top of them safely and securely. Raise Its also have a non-slip insert that keep it from slipping on hard surfaces that allow you to safely and securely adjust your furniture height without fear of them sliding away. Raise Its are easy to install and installs in seconds. Raise Its easily adjust furniture to increase storage space, make furniture more user friendly, and improve ergonomics.