can you help me locate these rollers?

A handy person from Fairfield, CA 94534 says:
cant seem to find these two rollers sizes
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Paul from SWISCO responded:

The two closest matches we have are our 23-177 and 23-178 bypass hanger rollers. Look these both over and see if you could either one of these on your closet door.

23-177 : Front Bypass Hanger, 1/16
Front Bypass Hanger, 1/16" offset
23-178 : Rear Bypass Hanger, 1-1/2
Rear Bypass Hanger, 1-1/2" Offset
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