Need help identifying a tandem roller 1" wheel dia

A distributor from Brooklyn, NY says:
April 16, 2012
Hello,

I have a tandem roller that my client brought in to my office today that needs identification. I will need to make a purchase of 20 such units, however, I am not sure from your photos which roller is most compatible. Attached in this message are several photos of the roller that I received and need to order. The wheels are of metal construction and 1 inch in diameter. Thank you for your help.
A customer submitted photo of a tandem roller.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
April 18, 2012
Thanks for posting! Actually, it looks like the wheels were installed in the housing upside down. The tab on the back should be the other way around, and the flares on the top should actually be at the bottom!

With that in mind, take a look at our 81-056. Do you think these could be a possible replacement?
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