polyester mesh Imported MAGNETIC MOSQUITO NET FOR BOAT HATCHES: Designed to keep mosquitoes, flies and other insects out while allowing fresh air to circulate through your boat cabin. This magnetic boat hatch mosquito net helps maintain ventilation without letting bugs inside. QUICK MAGNETIC INSTALLATION: Magnetic mounting system allows fast and secure attachment around the hatch frame. Easily install or remove the boat hatch bug screen in seconds without tools or permanent hardware. ENJOY FRESH AIR WITHOUT INSECTS: Allows natural airflow through the boat hatch while blocking mosquitoes and other pests. Perfect for warm climates, marinas and overnight stays at anchor. UNIVERSAL FIT FOR MANY BOAT HATCHES: Designed to work with a wide range of deck hatches on sailboats, yachts and motorboats. A practical boat hatch insect screen for cruisers who want better ventilation and comfort onboard. DURABLE MARINE READY DESIGN: Made with lightweight mesh and marine-ready materials designed for repeated use in salt air and sun exposure. Compact design folds easily for convenient onboard storage.