This removable insect door is a perfect choice to help you keep annoying insects out such as flies, wasps, bees and mosquitoes, without using poison sprays or harsh chemicals. In the meanwhile, it allows fresh air in through mesh curtains. Each piece of the mesh curtain bears a weight in the bottom which can keep it in place after someone walks through. With this insect door, you are creating a comfortable private space for yourself by keeping annoying flying insects away. In addition, this insect door is light weighted and easy to install.