Roller for the top of my RV shower dooor

A handy person from Booker Tx says:
March 25, 2017
The size of the roller is 1/4" x 1". No markings on it!
User submitted photos of a shower door roller.
Profile picture of Tom
Tom from SWISCO responded:
March 29, 2017
Thanks for posting. Please see our 10-071 shower door roller, this looks like it could be a match.
Shower Door Roller and Bumper Kit
Shower Door Roller and Bumper Kit
10-058
$32.12
Shower Door Roller Assembly, Round Door
Shower Door Roller Assembly, Round Door
10-071
$13.80
SWISCO 10-058 Shower Door Roller and Bumper Kit
SWISCO 10-058 Shower Door Roller and Bumper Kit
VIDEO
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How to install the 10-058 shower door rollers
How to install the 10-058 shower door rollers
GUIDE
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Installation Instructions for the 10-071 Shower Door Roller Assembly
Installation Instructions for the 10-071 Shower Door Roller Assembly
GUIDE
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