Sliding shower door bottom guide.
Injected nylon bottom guides for sliding tub enclosure doors
Fits 7/16 inch thick door rails
Used by several door manufacturers.
Width: 7/16 inch
Length: 1-1/2 inch
Sold in pairs, priced in pairs
This product is similar to or the same as the following part numbers in these brands:
Prime-Line Products: M 6059