UNIQUE DESIGN: Suction cup curtains use 20 silver rings on four edges as suction cups. Stronger suction cups and rings make it difficult to fall down. EASY TO INSTALL: Use suction cups that attach without messy stickers or adhesives that can damage your window (follow our pictures or Compatible withpacking instructions). EASY TO ADJUST: Suction cups allow you to adjust the width and length of the blackout curtain, suitable Compatible with glass windows, sliding doors, and tight windows. FANTASTIC MATERIAL: Compatible with the triple weave, the curtain blocks 80-95% sunlight and UV rays, excellent properties in terms of heat insulation, noise reduction, and privacy. Blackout curtains with suction cups provide a quiet environment. Used Compatible with skylights/bedrooms can block direct light. You can also use the suction cups Compatible with adjusting the curtains. Keep the room cool in summer and warm in winter. The suction cup diameter is 4 cm. Test it, the weight test exceeds 3.6 kg. Can easily hold the curtain, do not worry Compatible with the suction power. TIPS: The suction cup you received may be bent due to Compatible withpacking transport. Pour boiling water into the bowl, soak the suction cup for 5-6 minutes, dry and use. The blackout curtains have a good shading effect Compatible with the home. When traveling, you can easily take it with you. Color: Black Material: Polyester Size: 198*130cm Package contents: 1*Curtain 20*Suction cups 20*Rings Only the above Compatible withpacking content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.