Roller Bearing Wear Resistant 160MM Black Rubber Triangle Stair Climbing Trolley Dolly Hand Truck Caster

The three wheels arranged in a triangle rotate around the central shaft. When encountering stairs, the wheels alternately contact the step surface, allowing the trolley to climb stairs effortlessly without manual lifting. It works on flat ground as well as stairways.

Black solid rubber tread offers excellent wear resistance, shock absorption and low rolling noise. It protects floors against scratches and leaves no marks. The metal wheel hub is sturdy and impact-resistant, suitable for frequent heavy-duty transport.

Made of thick stamped steel with galvanized anti-rust surface treatment. High structural strength, not easy to deform under load. Standard central mounting hole for quick installation on most hand trucks.

Stable load bearing for daily cargo transportation. Greatly reduce labor intensity when moving goods between floors.