Shrink Wrap International Shrink Wrap VentKeep your boat protected and dry with Shrink Wrap International vents. These self-adhesive vents prevent moisture and mildew by allowing proper air circulation under your shrink wrap cover. Made from durable plastic, they're easy to install and built to last through all weather conditions. Perfect for boats stored outdoors, these vents work in any climate to maintain proper airflow and protect your investment from damaging moisture buildup.Features: Lightweight Plastic; Sturdy Build; Helps Prevent Moisture Buildup and Mildew; Self Adhesive;