Drilled Rubber Stopper #2
A drilled and tapered rubber stopper with a 9 mm center hole. The #2 rubber stopper fits the opening of most standard sized beer or wine bottles. With a #2 rubber stopper, you can add an airlock to most beer or wine bottles.
Product Details:
- Top diameter: 21 mm
- Bottom diameter: 17 mm
- Height: 26 mm