Wonderful stuff. Especially if your gas tank or crankcase has had its integrity compromised miles from anywhere. A high strength epoxy that activates when kneaded, it goes from putty to steel-hard in 15 minutes. Contained in a plastic tube. An inexpensive, high-tech material that takes up no room and could be a real ridesaver. 4.1"×1.1" 2.2 oz.