30 IN WIDE X 48 IN LONG WHITE TAPE & STICK ZIPPER DOOR TYPE II ZIP-UP ZIPPER HATCH and DOORS are produced with high quality materials designed to withstand the rigorous demands of the marine/boating environment LORETEX Woven fabric, Polyester UV Coated Lock Stitch #5 Coil Zipper NO special tapes, glues, or heat guns are needed. Just "PEEL & STICK" ZIPPER HATCH and DOOR onto the surface, open the zipper, and cut through, for instant access with zipper closing A double slider allows ZIPPER HATCH and DOOR to be opened or closed from both sides The entire Hatch and Door zipper and thread are UV treated, Base material is non shrinkable