Thanks for your patience in this matter. I actually have the same desk drawers at home. I just re-used the existing rollers with a certain type of rivet. We're actually working on bringing in the rivets right now and will let you know as soon as we have them online. Then we can work from there.
I need these exact rollers, plus the smaller rollers (OS is 23/32") for the back of the drawer. I bought a used desk and all the rollers/o-rings/fasteners are missing. I have 6 drawers to fix, how do I proceed? I will need 12 large roller kits and 12 small roller kits.
I'm hoping you email your response as well as post here. Thank you!