CasterHQ's LV Series leveling casters contain a die-cast aluminum frame with a steel swivel head and a internal leveling mechanism & dial with a rubber foot pad; our state-of-art design allows for moving equipment to the desired location, adjusting down the leveling foot pad to level out and make the attached equipment is completely stationary. Our cast aluminum frame is powder coated in an ivory hue; wheels are ultra strong non-marking nylon material which has weight capacities comparable to steel wheels but are non marking and will not harm your floors like steel. Applications include: Computer racks, conveyor stands, medical & laboratory equipment, copiers, printers, modular framing enclosures, electronic enclosures, business & vending machines, manufacturing machinery and automation enclosures, shop equipment, diagnostic equipment, etc. Our brand has a new and improved special design allowing the lever to adjust much easier by hand. We also added nylon clear raceway seals to prevent dust and debris from entering the raceway bearings. Our new design will allow your caster to have a much longer life and superior performance than the competition. Buy quality from CasterHQ, our quality is guaranteed to exceed your expectations. These casters are great for moving work tables, weld tables, or heavy equipment. After moved you can lower the rubber foot-pad by turning the red knob by hand or by a wrench to make your table or equipment completely stationary. The rubber foot-pad is specially designed to absorb shock and vibrations to keep your table completely stationary while you are working away. Buy your leveling casters from CasterHQ. We offer Leveling Casters in Plate versions as well as Stem versions, all leveling casters include hardware except the Blickle Brand Leveling Casters which are a German made product. Some leveling casters come in a set of 4 and some come individually, please be sure to look at the photo and read the descriptions and technical specs prior to ordering so you can be sure what you are ordering.