Keep pesky insects out while still allowing fresh air into your home. With this great aluminum insect protection roller blind, insects don't stand a chance, and you can avoid toxic sprays and chemicals for pest control. Equipped with handles and a cord, the fly screen can be pulled down in no time. When not in use, the net disappears into the roller housing. This insect protection can be mounted on both the inside and outside of the window, can be individually shortened, and adjusted to the exact window size. The speed of rolling up can be adjusted.