The Loctite O-Ring Kit is an emergency repair Kit for making replacement O-Rings on the spot. It is easy to handle and ready for use in just a few seconds. The integrated Loctite 406 creates a strong bond line a strong as the rubber itself. The Kit contains five different sizes of nitrile rubber cord, a splicing jig, a safety knife and 20 G of Loctite 406. All you need.