The ClamSeal can instantly repair splits and tears up to 90mm (3 1/2 ") in length without the use of any hand tools, or adhesive.ClamSeal is a patented glue-less repair system and instantly repairs small tears or splits in inflatables above or below the waterline - regardless of the fact that the material may be wet.The system works by using two half "shells" that screw together tightly, using the inflatable material itself as a water and air-tight seal. It is quick and easy to fit and effects an immediate repair which can keep you afloat until a more permanent repair can be made.Features:Quick and easy to fitRequires no adhesive or tapeCan be used above or below the waterlineCan be used on wet materialsProvides an instant repairRe-usableThe ClamSeal can be carried as part of your emergency equipment on board. It can be used at sea, on shore; even underwater as no adhesive tape is involved. The clever mechanics of the ClamSeal design mean this simple product can keep you safely afloat.Uses:RIBsDingiesLiferaftsBuoyancy bagsVirtually any inflatable product