We need dark environment for sleep at night and take a nap in the middle of day,especially for little kids and some night shift people,then this great portable blackout curtain can solve all these problems perfectly.It is made of 100% polyester high density fabric,which can block out the light from the window almost 100%, because this kind of fabric use special high density textile spinning technology.This kind of fabric is really born to blackout the room,it's a godsend gift to light sensitive people, we are proud of that many of our customers use this portable curtain at home or during travel and they can sleep well ever after.Combined with suction cups and Velcro patches, you can take it to anywhere, just need few minutes, attach the suction cups to the window glass and adjust the Velcro patches to right size you need,so an ideal sleepy space created. Enjoy this special curtain, have a nice dream. Instructions:1.Make sure the window glass is clean, you can use a soft lint-free cloth to clean.If necessary, wash the suction cups with warm soapy water and dry them, because dirty suction cups will not stick as well. 2.Press the center of each suction cup down to the glass and keep the pressure about 10 seconds,a vacuum is created to seal the cups firmly to the glass,then gently release your finger pressure. 3.If you want to take down this curtain, never grab the blind and pull, this may damage the window glass.You just need to pull on the release tabs on each suction cup then you can take it down easily and pack up to the travel bag. ATTENTIONS: KEEP the suction cups AWAY from little kids under 10 years, they are not toys. Weight: 1.42lbs (0.65kg).Size: Max W52XH72inch (Width 132cm X Height 183cm).Package Contain: 1 pc curtain drape, 4 suction cups(ready installed), 1 travel bag. Blackout Curtain It is made of 100% polyester high density fabric, which can block out the light from the window almost 100%, because this kind of fabric use special high density textile spinning technology. This kind of fabric is really born to blackout the room,it's a godsend gift to light sensitive people, we are proud of that many of our customers use this portable curtain at home or during travel and they can sleep well ever after. Suction Cups Loaded Design Combined with suction cups and Velcro patches, you can take it to anywhere, just need few minutes, attach the suction cups to the window glass and adjust the Velcro patches to the right size you need,so an ideal sleepy space created. 100% Blackout Fabric-Line Figure It is made of 100% polyester high density fabric, which can block out the light from the window almost 100%. The line figure is a special design to decorate your room. Portable Bag Design Come with a travel bag, fold the curtain to small cube, you can easily put it back into the travel bag, then you can take it to anywhere with you. Further more, this travel bag have more space to help you organize some other things, like a coat or an small umbrella.