RecRepair Small Emergency Kayak Repair Kit includes everything you need to field repair no matter how far from civilization you may be. These kits utilize the same water-activated MRE heater bags used in the field by campers and soldiers. Adding the included salt tablet and water to the heater bag triggers a reaction that produces steam and enough heat to make the patch flexible. To use, simply clean the damaged area with alcohol swabs provided, heat the patch using the water activated heating bag, remove the adhesive backing, and apply to your hole or crack. Your repair is complete in only a matter of minutes!