The width is 1.5 inches total
1.0 inch total metal part
width of the metal strip 0.25 inch
Dave Sr. from SWISCO responded:
August 12, 2014
If you just want to replace rollers, take a look at our 10-101 and 10-102. We also have a screw-on housing with roller that might work for your shower door; take a look at our 10-152 and see what you think.