The Dr. Shrink 36" x 72" Zipper Access Door in blue is a polyethylene access panel designed to provide convenient entry beneath shrink-wrapped covers. Lightweight at approximately 1.4 pounds, the zipper door installs in shrink-wrap covers to allow access for inspection, maintenance or use of items stored or installed beneath covers (such as outdoor kitchen storage or equipment). Constructed of durable polyethylene with a classic style, this zipper access door is ideal for temporary or seasonal cover applications where an access point is needed. UPC: 657161009924. Manufacturer: Dr. Shrink. Part Number: DS-72B. Proposition 65 warning applies. Small business brand.