This Spring Tension Roller can be used as a top or bottom roller. It has a two inch (50.8 millimeter) long steel housing with a 1/4 inch (6.4 millimeter) wide, center grooved nylon wheel.

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Diameter Roller: 1-1/4''

Roller Width: 1"     

Housing Length: 2''

Width: 3/8''

Housing: Steel

Wheel: Nylon

High tension steel spring.

Wheel with centre groove.