Photo 1 of BiJun 4 Wheel Rolley Assembly,Strut Channel Trolley Rollers Wheel for 1-5/8" Wide and All 1-5/8" or Taller unistrut Strut Channel to Mount Heavy Barn or Shed Sliding Doors(2PCS)

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Photo 1 of BiJun 4 Wheel Rolley Assembly,Strut Channel Trolley Rollers Wheel for 1-5/8" Wide and All 1-5/8" or Taller unistrut Strut Channel to Mount Heavy Barn or Shed Sliding Doors(2PCS)Photo 2 of BiJun 4 Wheel Rolley Assembly,Strut Channel Trolley Rollers Wheel for 1-5/8" Wide and All 1-5/8" or Taller unistrut Strut Channel to Mount Heavy Barn or Shed Sliding Doors(2PCS)