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

Diameter: 1-1/8"
Diameter 2: 1-3/8"
Thickness: 1/8"
Material: Rubber
Nominal Size: #216
Type: O-Ring

Box of 16.

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.