[Product Information]- Made in Germany of a very high quality fiber plastic. Extremly Durable
- We have tested them and they showed no signs of wear after repeated tightening and Un-tightening of regulator to CO2 bottles
- Includes pin that allows you to attach to regulator so they won't fall off when changing out cylinders
- Affordable product that allows you to leave it on your regulator permanently!
- Fits Standard American Beer Regulators
