Watch it come to life
Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes™. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you! RAINBOW PEEPHOLES: 13,500 Line/Inch Diffraction Grating - 1 11/16" Diameter, 1/2" Window - Heavy Carboard.
IMPORTANT: Minimum order for this item is 100 pieces at .30 each. To recieve the quantity discounts advertised, you must add the quantity you're ordering to the quantity box on the order page.
Love to include these as bonuses when talking about light or optical illusions etc.
Great service! Fast Delivery! Love this product! Would Highly Recommend!
My students loved using the rainbow peepholes when we were studying a science unit on light. They were amazed how the diffraction grating in the peephole center breaks apart all of the colors that can be found in white light. They loved this project!
I love these little tokens of Rainbow Medicine! I keep some with me wherever I go so that if/when I have a sweet encounter with a stranger who is kind, funny or even sad and needs a lift; I will gift them a Peephole to bring a touch of joy and magic to their day. It never fails to deliver a spark of delight and I love the looks on their faces when they hold it to an eye and see the Rainbows!
We have been doing business with Rainbow Symphony for 23 years. They have excellent products, customer service and delivery. Thank you...