Photo 1 of Electric 4 Wheel Trolley Assembly for Taller Strut Channel for 1-5/8" Wide All Unistrut 1-5/8" 4 Wheel T Trolley Assembly Roller Stable Trolley Silent for Stable High-Load Load 1000 Pound (6 Wheels)

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Photo 1 of Electric 4 Wheel Trolley Assembly for Taller Strut Channel for 1-5/8" Wide All Unistrut 1-5/8" 4 Wheel T Trolley Assembly Roller Stable Trolley Silent for Stable High-Load Load 1000 Pound (6 Wheels)