COMPATIBLE WITH TRANZENDESKS: These easy-glide wheels are the perfect add-on accessory to your manual Stand Steady Tranzendesk standing desk! Not compatible with electric Tranzendesks SMOOTH & SILENT: The non-marring wheels are safe for all floor types - while remaining silent! Easily move your desk around your home or office without causing damage to your flooring FULL 360° SWIVEL: Move your desk around your workspace without breaking a sweat.! The fully rotating desk wheels make maneuvering your Tranzendesk a breeze. *The wheels have a 2" diameter and M10x1.5 threading EASY ATTACHMENT: Make your Tranzendesk mobile in minutes with these easy-attaching wheels. Simply remove the leveling feet and twist on the Stand Steady wheels SECURE LOCKING CASTERS: All four wheels lock with ease, so you can be sure that your desk is secure while you work