With 8-sets of plank-strong industrial casters with a complete set of bolts, nuts, screws and washers (32 each), not only is the quantity sufficient, but also 2-convenient installation methods, saving you the trouble of purchasing additional screws. Each castor is carefully crafted with high-quality polyurethane materials, its excellent wear resistance and toughness, whether it is around narrow corners or across multiple thresholds, silently, giving you an unprecedented smooth experience. Using a dual locking mechanism, whether it is the fixing of the wheel or the locking of the direction, it can be easily achieved, even in a busy working environment, it can remain motionless. At the same time, these casters also have the characteristics of quiet operation, will not leave any traces on the floor, and will protect your floor from damage. The powerful double steel ball bearing design gives this set of casters an incredible load capacity, easily carrying more than 500 lbs. of weight, whether indoor smooth tiles or outdoor rough roads, to maintain smooth rolling and flexible rotation, so that you can move more freely. The application range is extremely wide, from the kitchen table and cabinet in the family, to the heavy workbench in the workshop, garage, factory, and even all kinds of furniture in the office, can be perfectly adapted. With its help, you can easily adjust the layout of the space and enjoy unprecedented convenience and comfort.