Nightfall Blackout is an easy and highly effective way to blackout a room to help achieve a good night''s (or day''s) sleep. This blackout solution provides an 100% room blackout in seconds without any tools required. The adhesive grommet hooks make it easy to install on any smooth surface, providing a temporary no-drill solution (included). Available in two sizes: 51 x 72" (129.5 x 183 cm) or 56 x 48" (142 x 122 cm) to best fit your space. Panel can be installed horizontally or vertically across your window. Nightfall can also be hung in multiple configurations; whether you want to show some privacy or light.