Aluminum frame with nylon inner housing; adjustable; steel ball bearing; center grooved wheel; used as top and bottom roller on Columbia doors. Roller Edge Type: Concave. Contents: 2 Roller assemblies with screws.
Aluminum frame with nylon inner housing; adjustable; steel ball bearing; center grooved wheel; used as top and bottom roller on Columbia doors. Roller Edge Type: Concave. Contents: 2 Roller assemblies with screws.