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

Diameter: 2-3/4"
Diameter 2: 3"
Length: 3"
Thickness: 1/8"
Material: Rubber
Type: O-Ring

Box of 4.

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.