STRONG POWERFUL: Magnetic window screen with powerful magnets! Super powerful magnets on the mesh screen make sure that it stays closed also allows easy open for window access when needed. It is equipped with strong adhesive magnetic strips (magnetic force up to 720GS), doubling the magnetic attraction for a secure fit FINE FIBERGLASS MESH: Crafted from high-quality fiberglass mesh, this window screen replacement is tough yet breathable. Our fiberglass mesh offers superior benefits, including flame retardant, fireproof and tear resistance. Made of high quality window screen mesh to keep your home safe EASY MAINTENANCE: The screen mesh is replaceable and washable. Just remove and rinse or wipe the mesh to keep your magnetic screen window looking fresh and functional for years. You also can roll it up and store it without taking up space DIY SIZE: Our adjustable window screen is suitable for all window frames up to 39" x 59", the height and width can be cut to fit the window. Suitable for almost all window types such as aluminum/wood/iron window frames, sliding windows, expandable window screen, skylights, bathroom/toilet windows, and bug screen, blind screen, cruise ship windows and balconies AFTER SALE: Please contact us if you are not satisfied with our window screens for house windows, and we promise to provide a solution that will satisfy you. The window screen size may have 1 inch difference, which is normal. IMPORTANT NOTE: There is an installation video on the manual, please watch it before installation