Flex Shot the revolutionary super thick rubber sealant that caulks, bonds and seals virtually everything. From the makers of Flex Seal. Flex Shot as seen on TV is so easy to use and gives you a perfect bead every time. And because it’s so thick, you can fill huge cracks and holes, stopping the toughest leaks instantly! Forget about those bulky caulking guns. Flex Shot™ is the neat and clean way to make repairs with pinpoint accuracy. Flex Shot™ comes out nice and thick, clings to any surface, then turns into a stretchy rubber seal that’s virtually indestructible! Unlike regular caulks that dry out, shrink and crack, Flex Shot™ expands and contracts making everything completely waterproof. The free extension tube makes even hard-to-reach repairs perfect every time! Mildew resistant makes it perfect for kitchens and bathrooms. Ideal for hundreds of household projects.