Easy to install vent helps prevent condensation and keep the interiors of shrink wrapped boats dry.The Airlette Self-Adhesive Vent is easily installed by simply piercing the shrink wrap cover. These vents help to prevent condensation and curb the moist conditions that give rise to mold and mildew. Seals itself to prevent rain and snow from getting under the cover. Made of lightweight and durable plastic. Removable top for easy installation. Scalloped edges with raised walls allow for vertical or horizontal installation.Key FeaturesAllow airflow under the coverReduces moisture buildupRemovable Airlette Vent for easy installationRound design picks up airflow from all directionsAbout Shrink Wrap by Doctor ShrinkShrink Wrap by Doctor Shrink provides boats with 100% protection during the long off-season. During long periods of storage, your uncovered boat is susceptible to damage from a number of sources—rain, snow, blowing dirt and debris, bird nests and droppings, UV radiation and rodents. While a conventional cover or tarp offers your boat some protection from the elements, only a shrink-wrap cover gives it 100% waterproof protection, is impossible to blow off and can withstand heavy loads of snow or rain.The Shrink Wrap System is comprised of four components: Shrink Wrap Material, Self Adhesive Vents, Shrink Wrap Tape and Woven Strapping. First-time shrink wrappers will also need the Heat Gun Kit—which is a one-time purchase that may be used again, year after year. The Heat Gun Kit includes all the tools you need to wrap your boat, including a propane heat tool with 25' hose and regulator, safety gloves and glasses, shrink-wrap cutting knife, complete written instructions and instructional CD. We also recommend purchase of the Rebag Recycling Kit for environmentally sensitive disposal of used Shrink Wrap material at the beginning of the boating year. Select the amount of Shrink Wrap Material you need according to the chart at right. You will also need one roll of 3/4" x 300' Woven Cord Strapping, one 180' roll of Shrink Wrap Tape, at least four self-adhesive air vents, ten 3/4" Strap-Tightening Buckles and, as suggested, one prepaid Rebag recycling kit. Shrink Wrap Tape is for installation of vents, doors and repair of holes. It may be purchased in 2" or 4" widths,