Coitak Optical Glass Triangular Prism, 6 Inch K9 Glass with Gift Box

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$24.98
Sale Price
$24.98
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1 order = 1 tree planted (orders $20+)
14-day returns* · *exclusions apply
Family Owned Since 2020

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Details

The Coitak glass triangular prism is a 6 inch optical prism for students, hobby photographers and anyone curious about light. Hold it in a beam of white light and it bends that light into a band of rainbow colors. Refraction and dispersion become easy to see at home or in class.

Specifications

  • Brand: Coitak
  • Material: lead-free K9 optical glass
  • Length: 6 inches
  • Triangle side length: 1.2 inches
  • Includes: prism, gift box and microfiber cloth

What you can do with a glass prism

Set the prism in a sunny window and turn it until a spectrum lands on the wall or floor. Students use it in physics lessons to watch white light separate into its colors. Photographers hold it in front of the lens to add rainbow flares and light effects to their shots.

Coitak uses solid, clear K9 glass with high light transmittance, so the colors come through bright. At 1.2 inches per side, the prism is a great size for introducing refraction and dispersion.

Care and storage

Wipe fingerprints off each face with the included microfiber cloth before you start. Keep the prism in its gift box between sessions to protect the glass. Set it on a stable surface during experiments so it cannot roll off the table. The boxed set also makes a thoughtful gift for a rainbow fan or a budding scientist.

Browse more science toys and kids' gifts at Big Frenchies.

Shipping & Delivery

How long will it take to ship my order?

Your order will be shipped within 3-8 business days.

How much does it cost?

We offer free trackable shipping on select items.

Shipping rates for partner brand items and international orders may vary and will be calculated at checkout.

Where is my order shipped from?

Big Frenchies apparel is shipped in plastic-free packaging directly from our Virginia facility. Items from our partner brands may have different packaging and can be shipped from any of their fulfillment locations worldwide.

How long does shipping take?

USA: 3-8 business days
CA, AUS, UK, and Europe: 5-21 business days
Rest of world: 5-25 business days

Return Policy

You have 14 days from delivery to request a return or exchange for most products shipped within the United States.* Exclusions apply.

*Exclusions

  • Custom and handmade items are final sale and cannot be returned or exchanged, as they are crafted specifically to order.
  • Returns are only available for US orders. International orders are final sale.
  • For health and safety reasons, personal care items (like baby creams, shampoos, balms, sunscreens, and lotions) and food products cannot be returned once opened.
  • Jewelry and watches are not returnable.

Restocking fee: a 10% restocking fee is deducted from your refund on change-of-mind returns. There is no fee if the item is defective, damaged, or not what you ordered.

As a small family-owned business, we thrive on your feedback, so it's vitally important for us to make sure you're happy with your purchase. Customers are responsible for return shipping costs unless the return is due to a defective product. Learn more about our full return policy.

You can reach out to our customer support team by submitting your request via the "Contact Us" form or by emailing us at support@bigfrenchies.com. A member of our support staff will respond to you as soon as possible.

Need Help? Get In Touch.

We'd love to hear from you!
The best way to reach us is via email: support@bigfrenchies.com.

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