CoZroom Magnetic Screen Door with Tight Magnet Seal and Full Frame Velcro, Close Automatically for 34"x82" (Black) 14 strong magnets, 12 magnet strips are sewn inside. Wont break or fall off easily. Hand sewing reinforced edge is waterproof, anti-wrinkle, never breaks and has no gaps. Special care on edges, corners and other specific parts making it more beautiful and elegant. The high density screen door keeps bugs off, lets fresh air in and your pets go through it freely. A strong magnetic attraction makes door close automatically.