The zipper structure design can be adjusted in 3 sizes (27.6" * 28.3" / 43.3 "* 28.3"/ 70.9 "* 28.3"). Magic Door Suitable for bedroom, kitchen, dining room, wall, staircase, garden, outdoor and indoor. ★Installation steps: 1. Measure the size of the door first and select the appropriate magic door; 2. Measure the hook position and simulate installation, ark the position of the hook, It must be ensured that the magic door is straightened! 3, and then install the hook(The hook is very sticky. Do not use it on rough surfaces, powder walls, walls with wallpaper or oil stains, or wet surfaces) 4. Stretch the 2 support rods to the maximum length, and then put it into the magic door on both sides. hang the magic door on the hook and then start working. ★Note: 1. Waterproof strong viscose hook is very sticky(maximum weight is 22 pounds); 2, in order to avoid damaging your wall, please choose a suitable location to paste before use. 3, Suitable for smooth, clean and dry surfaces, can be used for tiles, boards, glass, metal, marble, etc. 4, Not applicable to the rough surface, wet surface, wallpaper, greasy wall, powder wall, greasy wall, paint wall, lime wall, etc. ★specification: Material: nylon woven mesh + stainless steel + plastic Size: 27.5in * 28in /43.3in * 28in /70.8in * 28in Color: Black Weight: 350g ★The package includes: 1x mesh cloth 2x telescopic rod 6x New Upgraded adhesive Hook ★Anyone who is not satisfied with the quality of this product, please contact us as soon as possible, our store promises a 100% refund or resend. Your satisfaction and support are our greatest motivation. Features & details 【Magic upgrade sticky hook】-Uses cutting-edge technology and strong waterproof sticky hook，the latest Nano adhesive technology principle, Strong adhesion, not easy to fall off (please confirm the wall before use, Not applicable to the rough surface, wet surface, wallpaper, greasy wall, powder wall, greasy wall, paint wall, lime wall, etc.) 【Adjustable zipper-type magic door】 -Creative design, adjustable in 3 sizes (27.6 "* 28.3" / 43.3 "* 28.3" / 70.9 "* 28.3"). When purchasing a magic door, please confirm the size first, suitable for a doorway, bedroom, kitchen, dining room, wall, stairs, garden, outdoor and indoor. 【Easy to install】-The black portable dog door is suitable for small and medium-sized dogs. It does not require any tools and can be easily installed anywhere. When someone needs to pass, it can easily be fully or partially retracted. 【Thickened Pet Magic Security Door】 -Magic Pet Door is made of upgraded tough woven mesh fabric with strong tear resistance, which can be used as a pet door by closure Game and rest environment to control pranks.