RIGHT ANGLED PRISM || Triangular right angled prism with 90x45x45 degree angles. Made of high quality, polished acrylic material 2.1" LENGTH || Prism measures 2.1" (55mm) in length and has a hypotenuse measuring 1.5" (38mm) PHYSICS EXPERIMENTS || Excellent for physics classrooms. Ideal for redirecting beams of light at a 90 degree angle, as a retro-reflector, as well as for a variety of other experiments in optics, light refraction, spectrometry and wavelengths PHOTOGRAPHY || Great for photography lighting and distortion effects MANUFACTURED BY EISCO LABS || Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind