CO2 Wrench, Plastic sold by Kegconnection Made in Germany of a very high quality fiber plastic. Extremely 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. Shipping rate is for the Continental US ONLY