【100% Blackout】Sumobaby blackout curtain adopts upgraded reflective silver coating and high-density black polyester, the blackout effect can easily reach 100%. Blocks sunlight and harmful UV rays to darken your room, reduce heat and enhance privacy.【Strong Hook and Loop Tape】Each blind for windows come with 12 pairs of self-adhesive hook and loop tape, easy to apply, has strong stickiness, and firm grip, suitable for all kinds of flat surfaces. Such as glass, wall, aluminum alloy windows, etc. You don't need to worry about the curtains falling.【Easy to Cut】50"x57" blackout window blinds, because of the special material, you can easily cut the curtains into the shape you want to perfectly match different shapes of curtains. It is recommended to cut the size slightly larger than the actual size of the window for a better shading effect.【Premium Material】Sumobaby blackout window shades are made of thick, strong but soft high-density polyester fabric material. Ultra-light, durable, and comfortable texture, the front is matte black, and the back is silver gray, stain-resistant, and easy to clean.【Multi-Scenario Use】The Velcro installation method and the packaging design of the sealed bag make the blackout window curtains easy to carry, and can perfectly create a comfortable dark sleeping environment or private space in various scenarios. Such as bedroom, dorm, baby room, TV room, in-vehicle and hostel.