Leveling Machine Casters with Rubber Pad, FM-60F Plate Mounted Retractable Workbench Caster, Leveling Feet Wheels, Loading Capacity 551lbsPer, Pack of 4

If you're looking for a set of casters that are solid and can handle a substantial weight, these are a great option. They have a retract mechanism that is operated via a red dial, but it can be a challenge to turn, as some customers have noted. However, once you get the hang of it, the mechanism does work fine. The casters can support a workbench, even one that has significant weight, and the wide rubber feet provide stability that will help absorb slight vibrations. These casters can handle some sawdust on the floor, and they move smoothly, too. However, lowering the rubber feet can be a bit of trouble, if you plan on moving the workbench frequently. Some customers didn't like the adjustment system that these casters use, because it takes some serious force to turn the leveling dial. If you're serious about needing good-quality casters, then spending a few extra dollars on this set is worth it. They are a game-changer for many users, who have found that other casters just don't compare.