EternaSeam, with an extra wide 6"x10' roll of RoofSeal MicroSealant tape, is specifically designed for front and rear RV roof-cap systems and will permanently seal the seam for years of carefree motoring. The extra width allows the installer to go right over the old sealant (except silicone). No more costly yearly seam maintenance. EternaSeam comes in a convenient 6" x 10' roll with a scoring pad, plastic squeegee, 2 oz. tube of caulk, and an RV-EMT instruction sheet.