Flat Roller Assembly for Sliding Windows
This Roller is constructed out of Nylon and Steel
The Housing is Nylon
The Rollers are Steel
The roller surface is Flat
This design is used by manufacturers such as Horizon

Material: Steel and Nylon
Roller Diameter: 9/32 inch
Roller Edge Type: Flat
Housing Width: 15/32 inch
Hole Center: 1-11/32 inch

Contents
2 roller assemblies

Priced and sold in pairs.