Photo 1 of Fuperoo 2 Wheel Trolleys Rollers.Bearing Trolley Assembly.The top of The Trolley has Room for Set Screws, Allowing The use of a 1-5/8" high Strut Channel

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Photo 1 of Fuperoo 2 Wheel Trolleys Rollers.Bearing Trolley Assembly.The top of The Trolley has Room for Set Screws, Allowing The use of a 1-5/8" high Strut ChannelPhoto 2 of Fuperoo 2 Wheel Trolleys Rollers.Bearing Trolley Assembly.The top of The Trolley has Room for Set Screws, Allowing The use of a 1-5/8" high Strut Channel