Got a massive workbench, industrial machine, or heavy cabinet that needs to move sometimes but stay rock-solid other times? This set of 4 WEIBIDA leveling casters is your heavy-duty solution. These beasts can support a total of 6600 pounds (that's 1650 lbs per caster!), thanks to their tough construction with carbon steel top plates and aluminum alloy bodies. The magic is in the ratchet handle. Instead of struggling to turn a bolt under load, you just pump the handle to effortlessly raise the heavy rubber foot off the ground, engaging the smooth-rolling nylon wheel. Lower it back down, and the solid rubber base locks your equipment firmly in place, absorbing vibration and preventing slips. They swivel 360 degrees for easy maneuvering. This innovative design makes moving heavy equipment safer and way less labor-intensive than old-school leveling feet or furniture dollies. Perfect for workshops, factories, medical equipment, commercial appliances, or any serious heavy furniture. They come with a solid promise too: a 60-day satisfaction guarantee and a 1-year warranty against quality issues. If you need serious mobility and stability for heavy stuff, this is the set you want.