Mosquito Head Net by Lifesystems, is a fine black mesh net with cord fastening to protect the head and neck from annoying flying insects when outdoors.It weights 40g.About Lifesystems Mosquito Nets:Travelling to countries where insect-borne diseases such as malaria, yellow fever and dengue fever are common, a mosquito net is an important accessory to carry with you. To guard against serious health threats, ensure that you do not get bitten in the first place. Sleeping underneath a mosquito net provides important protection. Lifesystems offers a high quality range of mosquito nets for travel and the outdoors. These mosquito nets are both tough and highly effective barriers against mosquitoes and small biting insects. They all feature tough hexagonal fine-mesh netting with 196 holes per square inch, offering a high level of protection and excellent breathability. The polyester netting is extremely tough and resistant to snags and tears. They are impregnated with EX8 Antimosquito – a pyrethroid treatment which is repulsive to insects. Conveniently, unlike permethrin treatment, EX8 will last for up to 2 years or 35 washes. By impregnating your mosquito net with EX8 antimosquito, you will be adding an extra layer of protection against biting insects.They come in different shapes and sizes: wedge (with or without spreader bar), box, bell (with or without spreader bar), and dome, and single or double-sized (apart from the dome-shaped which comes only in one size).