Check the listing for details. Optical Glass Triangle Prism Refraction Sunlight Rainbow Teaching Spectrum Props. Condition: New. Listed at 8.54 USD. Triangle Optical Glass Prism Refraction Sunlight Rainbow Teaching Spectrum Props Product Description Features: Make a Rainbow by Refraction Easily - It produces rainbows using direct sunlight and can also be used for some cool photography effects! Cool Science Experiment You Can Do at Home - You can explain to kids that light is actually made up of a spectrum of colors and talk about how rainbows form and then cement the information with a demonstration. Trying the Instagram Rainbow Trend - Using a prism in front of your lens can really make a vivid large rainbow across your face. It will be nice to add to your photography supplies. Makes a Great Gift - Most people at age would have a lot of fun playing with it. Specifications: Material: K9 Optical Glass Size: 25*25*80mm, 30*30*50mm,30*30*100mm,30*30*150mm, 30*30*200mm Note: Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thank you! Package Contents: 1 x Triangular Prism with box About Us About Item All items sold by us are being described to the best of our abilities, as accurate as possible, and with utmost conscientiousness on our part. However, to avoid any potential oversights, I respectfully request your assistance in helping us to make this a mutually satisfactory transaction by THOROUGHLY reviewing item description and photos, and asking all questions PRIOR TO BIDDING. Customer Satisfactory 1.Do not hesitate to contact us anytime before and after your purchase, we are committed to your 100% customer satisfaction. 2.We back our commitment with superb service, 100% full money back and a customer satisfaction guarantee. 3.I am here and ready to assist you with any questions or concerns you might have before or after the purchase. 4.My goal is to make sure you are a happy customer and pleasant shopping with us. Feedback If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive feedback with an overall Detailed Selling Rating (DSR) of 5. Our eBay account setup auto feedback, so eBay system gives you automatically Positive feedback back after your positive feedback left. If you plan to give us a neutral/negative feedback Or open ebay/paypal case, please write to us immediately so that we can do our best to resolve your problem. Shipping 1. All our stock is located in China and all shipments will originate here. Your purchase will be shipped via standard airmail two or three days after payment clears except those custom products. 2. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying. 3. Shipments will be shipped from china by EMS or DHL or Fedex or UBI. A tracking no. is provided once the item is dispatched. Delivery normally takes 7-20 business days if it can go smoothly through customs. 4. We do not ship on holidays or weekends. Returns 1. If you receive any damaged or defective items, we will exchange it as quickly as possible. 2. You must contact us within 7 days of delivery of the product to notify us of any defects. 3. You need to send a picture to prove the problems by using ebay's attaching files button. 4. Items must be in original box and kept in good condition. 5. Buyer is responsible for return shipping cost if there isn't any problem with the product. No matter the item is free shipping or not.