Moving heavy or bulky equipment is easier when you have good-quality casters. The most effective combination is two rigid-plate casters and two swivelling-plate casters with locking mechanisms.
These durable 4" smooth-rolling casters have solid rubber tires and are available in two versions: a fixed caster and a locking swivel caster that has a foot-operated lever that simultaneously brakes the wheel and locks the swivel. Load capacity is 150 lb per caster.
Available individually or as a set of four (two of each style).