Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25

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!!!

Works great for student Kaleidoscopes

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 :)

These are great to teach about the science of rainbows and the children love going on rainbow hunts!

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

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!

They are all the same. I thought each one did different things with the lights but they are all the same.

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