Uonlytech 4pcs Sliding Cabinet Door Pulley Pulley 2 Wheel Trolley Assembly Sliding Doors Double Wheel Wheelbarrow Hanging Rail Single Aisle Bearing Steel car Heavy Window c30

Heavy duty trolley assembly: made of solid steel material for impact resistance. the surface is galvanized to ensure rust resistance.
Trolley for strut channel: smooth rotation, can bear up to 50kg weight. bearing welding positioning to ensure the stability of work.
Two wheels bearing trolley assembly: stable characteristics, high performance and in great reliability, simple, easy to install.
Roller trolley: cable trolley for enhanced load-bearing capacity. 8mm screw hole, easy to install.
Bearing roller strut channel: this solid steel bearing allows trolley assembly stay in the rail.