Brand Name: Prime-Line
*Diameter: 7/8 in.
*Length: 1/4 in.
*Material: Aluminum/Nylon/Steel
*Product Type: Spring Tension Roller Assembly
*Number in Package: 2 pk
*Hardware Included: Yes
*Packaging Type: Carded
*Compatibility: Used on Keller Doors
*Includes 2 roller assemblies
* Can be used as a top or bottom roller
* Wheel with center groove
* Aluminum housing
* Heat treated, high tension steel spring