The Clam Seal life raft repair clamp repairs small tears or punctures in any inflatable—instantly, without glue. After inserting the device into a tear, The Clam Seal allows boaters to make an instant and reliable repair that will last indefinitely until a permanent repair can be made. Suitable for tears, rips, abrasions and punctures up to 3 1/2" (3.5" inches / 90mm) in length.