This is an assortment of 30 rubber O-Ring gaskets for watch battery covers. These gaskets work just like regular watch case back gaskets: they keep the battery case sealed tight to prevent water from entering the watch battery case.
- Kit has a total of 30 pieces
- Consists of an assortment of different battery gaskets
- Maintain airtight seal
- Solid tube o-ring gaskets
- Made of rubber