Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs sold2025 5mm/3mm/5mmEach load: - 5mm: 500-600lb

5mm/3mm/5mmEach load: - 5mm: 500-600lb - 3mm 130-150LB - 1

50Hz/60HzTemperature Control Output：Max

5 inch disc are compatible with most 5 random orbit sanders

Versatile and Easy to Read : a large

black and yellow

Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs sold2025 5mm/3mm/5mmEach load: - 5mm: 500-600lbDouble Convex Lens, 300mm Focal Length, 3" (75mm) Diameter Spherical, Optically Worked Glass Lens Ground Edges, Polished Great for Physics Classrooms Eisco Labs Our mission is simple; to be TRUSTED by educators, researchers, and scientists throughout the world to design, manufacture, and DELIVER products that allow LEARNING and the development of scientific knowledge. For over 50 years, Eisco Scientific has been manufacturing and selling quality