... :Anode and cathode of magnet attract each other makes it easy to sell-close quickly, open convenient, solid durability, aesthetics brilliant ... ,middle open, no deformation and crease –resistant.2. Elegant modeling,easy to take, no noise.3. Quick auto-closing,convenient to ... go in and out of the room.4. Easy folding makes it easy to install and collect.5. Solid durable,washable ...