Heavy-Duty Build:Two bearing trolley assembly made with stainless steel for impact resistance. . Smooth and noiseless during use, bearings and pins are firmly welded, work stably, resulting in incredible strength and quality!
Operate Steadily:Wheel trolley standard deep groove ball bearing installation, is very smooth no noise to it when used. Bearing welding positioning, to ensure the stability of the work.
Unique Design: The bolt is in the fastening groove, unistrut trolley will not be blocked in the channel. Two bearing trolley assembly wheel heavy duty trolley assembly with silent wheel.
Easy Operation: When using, just push the wheel into the pillar channel, you can use the cart upside down.