Very simple. Put it on your window and now there are little rainbows on your walls when the sun is shining. Solar powered and lasts forever, my mom has had the same one for a decade.
My house didnβt have curtains, but I found these on Amazon and like them way better. Doesnβt block natural light and throws rainbows all over the place.
https://www.amazon.com/Mikomer-Decorative-Rainbow-Decoration-Control/dp/B0714JZJTB
