Oak chip and oak bean infusion tube. Made of 304 stainless steel. Great for use in carboys and demi-jons or barrels that have become neutral. Fill tube with oak chips or beans. Infusion tube makes for easy remove of beans and chips. Fits 5, 6, 6.5 gallon carboys and 15 gallon or larger barrels. A 10.5 / 11 drilled stopper is included. Entire length is 20". Barrel of tube is 15" and stem is 5". One inch outside diameter.