Prime-Line D 1735 Roller Assembly 1-1/4 in Dia Roller 5/16 in W Roller Steel 2-Roller Plain Back Mounting

1-1/4 in tandem steel ball bearing rollers; adjustable steel housing; dimensions: thickness 11/16 in; length 3-1/8 in; height 1-1/32 in. Roller edge type: Concave. 2 tandem wheels in roller assembly.