Finished wood
V-shaped slot holds lenses or mirrors up to 76mm diameter
Holds convex or concave lenses or mirrors
Index mark engraved on each end of the base
5″ x 3.75″ x 1.87″ dimensions
Finished wood V-shaped lens holder; fitting convex or concave lenses or mirrors up to 76mm in diameter. For use in demonstrating the principles of light and color. Lenses/mirrors not included.