Flat Roller Assembly for Sliding Windows
This Roller is constructed out of Nylon and Brass
The Housing is Nylon
The Rollers are Brass
The roller surface is Flat
This design is used by several manufacturers including House of Aluminum

Material: Nylon and Brass
Roller Diameter: 3/8 inch
Roller Edge Type: Flat
Housing Width: 7/16 inch
Hole Centers: 1-5/16 inch

Contents
2 roller assemblies