Leveling casters boast a superior design that allows not just the mobility of loads, but also a unique locking system that prevents movement. The addition of an anti-vibration cushion, plus a mechanism to raise and lower this cushion creates a unique feature: the supported load may sit completely level to the floor when desired or the load can be raised if mobility is needed. Leveling casters are sworn by in a number of industries (pharmaceutical, medical, woodworking, et al.) and the FootMaster brand's leveling caster products are the industry benchmark for quality and performance. When you are seeking the most reliable mobility solution among leveling casters, you're looking for FootMaster products.