Features: Versatile Application for Different Room Needs: These light blocking strips can be applied in various areas of the home, including bedrooms, living rooms, and media spaces. The U-shaped side Rail tracks help create a darkened setting, which can be useful for daytime sleeping or improving viewing conditions for daytime movies. They are intended for use with inside-mount roller shades. Considerations for Optimal Results: For these light-blocking shades to function as intended, a couple of conditions are beneficial. The thickness of the lower rod on your window shades should be less than about 0.5 inches, and the gap on the side where light enters should be under about 1.5 inches. Checking these aspects helps in determining if the product is a fit for your specific window setup at home. Specifications: Material: aluminum alloy Color: white Size: 57.5 x 1.58 x 0.99inch Package includes: 2 X U Channel Aluminum Alloy Light Blocking Strips 2 X screws 2 X Adhesive Backing Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Small parts included, please keep them away from little kids to avoid swallowing risk. This product contains small parts and poses a choking hazard. Keep away from children and pets to avoid accidental ingestion