This set of 4 Castor wheels are to be used with the Leitz Electric Sit Stand Desk so you can get your workspace converted into a fully mobile workstation. Quick and easy to install, the wheels make movement around the home and office effortless whilst maximising space. The wheels are suitable for use on all floor types and the 360 degree aspect means you will have full movement of your desk. The wheels are lockable to ensure the desk stays secure.