Brand Name: Prime-Line
*Diameter: 1 in.
*Length: 1/4 in.
*Finish: Mill
*Material: Plastic/Steel
*Product Type: Roller Assembly
*Number in Package: 2 pk
*Hardware Included: Yes
*Compatibility: Patio Doors
*Packaging Type: Carded
*Includes 2 roller assemblies, installation screws
* Heat treated, flat, high tension steel spring
* Bent spring design