Lockable Desk Casters Single Motor Standing Desk WheelsLets get this Desky Rollin If you need to move your sit stand around, you don't want to be lifting it every time. But equally, the last thing you want to do is to compromise the stability of your desk. Our castor wheels are specifically designed to be fitted to sit stand desks. They provide total stability, and can be locked solid when your desk is static. Built to withstand constant strain, each wheel alone can safely bear up to 50kg of weight.