LightRail Extreme Duty Trolley Wheel Kit for LightRail 3.0/3.5/4.0 air-purification Product Highlights Fits High Pressure

Product Highlights Fits High Pressure Sodium ballast

worm castings

and enhance quality in potting soil grown plants during the flowering stage of their life

dehumidifying

LightRail Extreme Duty Trolley Wheel Kit for LightRail 3.0/3.5/4.0 air-purification Product Highlights Fits High PressureEXTREME DUTY TROLLEY WHEELS, for LightRail 3. 0, 3. 5 and 4. 0. A suggested upgrade item for moving multiple lights and or overweight loads such as heavier LED, plasma, or any light with an internal ballast weighing 35 pounds or more. They are engineered with steel on steel ball bearing with a nylon over molded tire for smooth quiet operation. Rated up to 60 lbs per set and comes with a lifetime warranty.