Sizes - 1-2-3-4-5-6-8-10-12-14-16- 18-20-25-30. Our prism bars are made of extremely high quality plastic, which are optically clear with an index of refraction of 1.49 and a light transmission value of 92%. The manufacturing process greatly reduces optical strain, producing prisms that virtually eliminate clinical birefringent effects.
For orders outside North America, or to place an order by phone or email please call
1 (877) 678-3464 or emailing us at firstname.lastname@example.org