No #markings or lettering on roller

A home owner from Altadena, Ca says:
Looking to replace these wheel/mount parts for my doors.
Each door takes two, so I need four in total.
Thumbnail of the uploaded file named SliderParts.jpg
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Casey from SWISCO responded:

Hello,

Your roller resembles the 81-139. The determining factor would be how the dimensions compare to yours. We'll include the image from our product page below. Take a look and let us know if you have any other questions. Thank you!

Alternate image for 81-139
Alternate image for 81-139

A home owner from Altadena, Ca says:
Casey,

Can you help me place the order for (2) sets of rollers?
I want to replace both rollers on both doors.
I'd also like a tube of lubricant for the rail.

Any other tips for keeping my 30+ year old doors operational?

Thank you!
Profile picture of Casey
Casey from SWISCO responded:

Unfortunately, we are not able to process orders through this thread but you are welcome to purchase these rollers directly on our website or by giving our customer service team a call at (888) 991-1929. We also offer the 75-077 slider slicker to lubricate the track. If you notice any other parts on the door that you may need to be replaced, feel free to get back to us with additional photos. 

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