Concave Mirror, Material: Glass, designed for physics and educational use, Because of their educational use design, there may be minor imperfections that do not affect physical function, Optically worked, silvered back with protective coating, Size: 5.9in diameter, 300mm Focal Length
Concave Mirror, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may minor imperfections that do not affect physical function, thickness varies as they are not designed, Size: 4 in diameter, 150 mm Focal Length - 3mm Thick