Photo 1 of Hi Flame 4 Wheel Trolley Assembly, Four Bearing Trolley Assembly for Taller Strut Channel or All 1-5/8" Channel (Pack of 4)

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Photo 1 of Hi Flame 4 Wheel Trolley Assembly, Four Bearing Trolley Assembly for Taller Strut Channel or All 1-5/8" Channel (Pack of 4)Photo 2 of Hi Flame 4 Wheel Trolley Assembly, Four Bearing Trolley Assembly for Taller Strut Channel or All 1-5/8" Channel (Pack of 4)