API LDTT150F Topper Tape&reg; for Mounting Truck Caps / Camper Shells (1 roll 1-1/2" x 30' long) LDTT150F  3/16 Thick X 1-1/2 Wide X 30 Long  Film Back Protects your trucks finish, seals out moisture, air and dust Formulated from Polyvinyl Chloride (PVC) for long service life Complete installation guide Made in the USA