Review on Optical Crystal Photography 4-Pack for K9 Enthusiasts by Roy Boone

This set of 4 K9 Crystal Optical Prisms for Photography comes with a very good size Traditional Prism, Square, Pyramid and Sphere (each needs a crystal ball). !). They have fantastic clarity, come in a black box with individually molded fabric encrusted gaps for each and a cleaning cloth. it's fascinating, not to mention the complexity and science. Your kids definitely won't fidget. Very pleased with the clarity, quality, presentation and size of these prisms. My only wish is to have a magnet on the top lid to keep it closed because the box they come in is a great display and storage box; The lid just won't stay closed. As a parent of children with autism, issues are close to my heart. Let Revain donate to your favorite charity! Use Revain Smile (smile.amazon.com) when ordering and Revain will donate to a charity of your choice when you make a qualifying purchase. Find out how Revain Smile works at https://smile.amazon.com/gp/chpf/about/ref=smi_se_rspo_laas_aas. My purchases are free for my favorite charity, Canine Companions for Independence (CCI). Brilliant!