Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50

I like to keep a few trinkets in my pocket or purse in case nearby kiddos get tantrum-y at grocery stores, on planes, restaurants, etc. (I always get parent permission, of course!) These are SO GREAT for handouts. They're basically cardboard monocles made out of the same stuff as "fireworks glasses" they sell around July 4th. Looking through them turns every light source into dazzling rainbows. Kids adore them and if I'm ever blue, I squint through one and the rainbows really lift my spirits. They're great!

I added these to kandi & gave them out at electric forest. Huge hit & easy to carry around a fest for rave gifts :)

These are so much fun! Easy to send along with a note to anyone, kids, senior citizens- I mean who doesn’t love an instant rainbow - cheap stocking stuffers and nice to have on hand for fidgety children ( I always ask the parents first or I discreetly hand to a parent)- I carry around a few in my car just to brighten Someone’s day!!!

Fun little light-catcher/holographic prisms. Enjoyed by kids of all ages. Especially fun for viewing holiday lights, whether on the tree, neighbors’ yards, or decorations. Add to the “effects” of fireworks, too ! NOT RECOMMENDED FOR DRIVING !!

I give the rainbow peepholes to my students as rewards. When they see the rainbow I tell them about light refractions and they want to learn more. As a science teacher in a low socio-economic area, most of the students do not get a lot of material things, so they are grateful and curious when they get rewards. Plus, they love learning about rainbows and how they're made.

Used with my students when learning about light and color. I used a hole punch to add them on a lanyard string. This let us use them all day in different settings without losing them.

I gave these out to a first grade class and the kids LOVED them. Some took them home and made kaleidoscopes with them and others just played with them as is - really cute. A bit overpriced, and the first package I received only had half the discs, but Amazon quickly fixed the issue for me, and the kids were really happy with the rainbow makers :)

Works great for student Kaleidoscopes

En la descripción no se alcalza a ver si tamaño..son como una moneda.