Double Concave Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs industrial_Oct2022 Ensure that the pliers are

Ensure that the pliers are stored independently and upright to protect the jaws

Length: Available in 150m and 200m lengths

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Double Concave Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs industrial_Oct2022 Ensure that the pliers areDouble Concave Lens, 300mm Focal Length, 3" (75mm) Diameter Spherical, Optically Worked Glass Lens Ground Edges, Polished Great for Physics Classrooms Eisco Labs Product Features DOUBLE CONCAVE Highly polished, double concave lens SPHERICAL Lens measures 3" (75mm) in diameter 300MM FOCAL LENGTH Diverging lens with a 300mm focal length OPTICALLY WORKED GLASS Made of high quality, optically worked glass. Highly polished with ground edges GREAT FOR