Flex Shot Rubber Adhesive Sealant Caulk, White, 2 pack Caulks, bonds and seals virtually everything! No need for a caulking gun! The free extension tube makes even hard-to-reach repairs easy Gives you a perfect bead, every time. No running, no dripping, no mess! Expands and contracts to fill in huge cracks and holes No waste. Use it again and again!