Replacement Roller

I recently ordered 2 tandem roller assemblies with wheel diameters of 1 1/2" (Product Code: 81-087) hoping that they would work to replace a nearly identical piece (exact same housing as the one I have). The original had wheel diameters of 1 1/4" but I did not see that size on your web page. Is there any chance you might have a replacement? If not, do you know where I might be able to get this particular model but with 1 1/4" wheels? The dimensions are identical except for the wheels (1.25 vs 1.50") and the fact that the old ones were plastic, if that matters.

Thank you very much,

Kate