12pcs Magnetic Accessories for Window Blackout Shades for Windows Bedroom No Drill Blackout Curtain Window Blinds Sun Blocking for Home Living Room Travel

These are the same brand as some blackout fabric I bought to block my windows. They work fine and will give you better coverage/anchoring. I took off a star because the photos are very deceptive. As another reviewer stated, they appear to be a shiny silvery color. That is actually the white adhesive you are seeing in the photos, I guess, because the discs themselves are black, very thin, and all scratched up. They'll do the job but they certainly do not look like the photos.

Application: They are easy to apply, though using them for curtains, the adhesive could be stronger.Usage: I use these to close our curtains and had to use additional adhesive to keep them in place.Overall: They get the job done.