Operate Steadily:4 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, trolley will not be blocked in the channel.4 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.
Style: 4 wheel trolley assembly roller
Color: Silver
Material: Zinc Plated Steel
Package Contents:unistrut trolley2PC
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.