4pcs Clear K9 Crystal Triangular Prism for Photo Rainbow Lights Crystal Optic...

4Pcs Clear K9 Crystal Triangular Prism for Photo Rainbow Lights Crystal Optical

Equilateral Prism, 1" (26mm) Length, 1" (26mm) Faces - Glass - Eisco Labs

Equilateral Prism, 2" x 1" - Glass - For Optical Experiments - Eisco Labs

Prism Beam Splitter Penta Prism 1PC for Optics 1" Size High Quality

Right Angled Prism, 74mm Length, 50mm Hypotenuse - Acrylic - Eisco Labs

Equilateral Prism, 2" (50mm) Length, 2" (50mm) Faces - Acrylic - Eisco Labs

4pcs 6 inch Clear Optical Lens Glass Triangular Prism for Photography Science...