Free-Standing Wooden Lens Holder for 50mm Lens Human Anatomy_Human Anatomy Charts & Models Double-pole double-throw brass knife switch

Double-pole double-throw brass knife switch

the thinnest gauge for mounting the smallest and most delicate insect specimens in permanent displays

MANUFACTURED BY EISCO LABS || Eisco Labs proudly manufactures its own products using state-of-the-art equipment

with thumb-wheel jaw movement for fine dimensional precision

Pack of 6 borosilicate 3

Free-Standing Wooden Lens Holder for 50mm Lens Human Anatomy_Human Anatomy Charts & Models Double-pole double-throw brass knife switchHolds 50mm diameter lenses upright on a free standing wooden base, the simple mount steadying optics elements at bench height for refraction, image formation, and ray tracing demos.