UNPARALLELED QUALITY: The prism set is designed with premium K9 optical spectrum glass, not your average plastic. It assures superior refraction effects and crystal-clear reflections. Carefully crafted with a thick optical photography prism glass, our prisms split beams of light to create impressive rainbows highlighting its different spectral components. EDUCATIONAL & FUN: Safe with rounded edges, our prism set functions as a critical tool for educating children about light nature and rainbow formation. It provides a fun, interactive way for kids to learn and understand science better, stimulating their interest and curiosity. EXCELLENT VERSATILITY: perfectly designed for a variety of uses, the prisms can show a rainbow for kids, create unique photos with specialized photography, or even be deployed for art photography effects. They can serve as aesthetic elements in weddings, birthday parties, and other outdoor events, contributing a unique touch. LIGHTWEIGHT & PORTABLE: The prisms come in two models, a 6 inch and a 1 inch, catering to all your needs and applications. Portable and easy to carry around, they make for perfect gifts for your family and friends.<br><br>Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:Transparent Material:K9 glass Size:150x30mm, 25x25x25mm<br><br>Package Contents: 2 * Drip Irrigation Pressure Regulator<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.