Best Magnetic Mosquito Net Concerned about how to open and close the windows and doors after installing the insect screen? For your convenience, you can lock and unlock your windows and doors. A small compartment, also known as a pocket, will be customised according to the handle size of the windows or doors. To remove the magnetic insect screen, just pull up the corner. In this case, the magnetic screen is more durable as customers will not need to dismantle the whole insect screen every time.