ITEM NAME:Optical Glass Triple Triangular Prism Physics Refractor Spectrum Light New description 100% brand new and high quality feature Large Prism for Teaching Can also be a toy for children Made of high quality optical glass Side length: approx. 30mm Prism length: approx. 50mm packing include: 1 * Prism.Large Prism for Teaching. Prism length: approx. Made of high quality optical glass. Can also be a toy for children. Side length: approx.
