4-1/2″ x 5″ x 1/4″ X-Large Rubber O-Rings (2 pcs.)
Diameter: 4-1/2″ Diameter 2: 5″ Length: 5″ Thickness: 1/4″ Material: Rubber Type: O-Ring Box of 2. An O-ring is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a disc-shaped cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.