Brand Name: Prime-Line
*Width: 1/2 in.
*Length: 4.25 in.
*Diameter: 1-7/8 in.
*Material: Plastic
*Product Type: Garage Door Roller
*Packaging Type: Carded
*Application: Garage Door Roller Replacement
*Color: Silver
*Number in Package: 1 pk
*Steel Ball Bearing Rollers
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* Factory Lubricated
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* Roller Edge Type: Convex
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* Axle Diameter: 7/16"
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* Axle Length: 3-3/4 & 4-1/4"