Free-Standing Wooden Lens Holder for 50mm Lens

This lens holder accommodates lenses or mirrors up to 50 mm in diameter and is mounted on a free-standing wooden base for stable positioning on a bench or tabletop. The holder is constructed from metal with grooved sides, finished in matte black to minimize light reflections. It measures 3.5 inches tall, 2.25 inches wide, and 0.75 inches thick. Designed for physics classroom demonstrations in optics, the wooden base provides stable, upright support without additional mounting hardware. Compatible with standard 50 mm diameter convex and concave lenses.