3-1/4" x 3-3/8" x 1/16" Rubber O-Rings (2 pcs.)

Diameter: 3-1/4"
Diameter 2: 3-3/8"
Thickness: 1/16"
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.