3/8" x 9/16" x 3/32" Rubber O-Rings (20 pcs.)

Diameter: 3/8"
Diameter 2: 9/16"
Thickness: 3/32"
Material: Rubber
Nominal Size: #110
Type: O-Ring

Box of 20.

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.