Flex Tape is a strong rubberized waterproof tape that stops leaks instantly. Flex Tape grips on tight and bonds instantly creating a super strong waterproof seal. So strong it even works underwater. The triple thick adhesive virtually welds itself to most surfaces. Great for roof leaks, gutter, down spouts, boats, canoes, outdoor and camping gear, PVC and plumbing pipes, pools, spas, ducts, DIY projects and so much more. Use on PVC, acrylic, metal, steel, copper, aluminum, ceramic, glass, rubber, fiberglass, dry wall, cement and so much more. One roll is 4” x 5’.