SEEYE Blackout PVC Light Blockers for Window Blinds and Shades, Light Blocking Strips Block Light Along Two Sides of Windows for Bedroom Nursery, Easy to Install(White, 17" L x 1.4" W x 0.8" H-6pcs)

Daylight in summer is an issue for our toddler and visiting family, so we bought these to cover the gap between the blinds and window frame. They made a pretty significant impact on the light pollution from those tiny cracks. The fact that they are magnetic (come with magnetic strips) worked beautifully because we can easily remove them when we don’t need them.They were a cost effective, safe solution for our situation. 👍👍👍

“Sticky” Magnet strips don’t adhere to the wall so had to use no more nails. Magnets are so weak that the light blockers don’t stay up

Great product overall, does what it is intended to do. Only issue is the magnetic part isn’t very strong, so a toddler can easily remove from wall. I already seeing this being a game with my little one 😩

For this for wedges of plastic price I would have expected at MINIMUM being able to serve their sole purpose of blocking out light. Alas, if only dampens it into a orangey glow. Maybe this would work if black or grey. Terrible. Don’t.

Not only does the adhesive not stick, these don't block any light on either side of the blinds or shades.