American Educational Concave and Convex Spherical Glass Mirror, 7.5cm Diameter, 25cm Focal Length (Bundle of 5)

Reversible concave and convex spherical mirror for demonstrating reflection and refraction
Outward curved surface forms an image of the reflected object that is slightly distorted and smaller than actual size
Inward curved surface forms an image of the reflected object that is upside down when past the focal point and magnified and right-side up before the focal point
Mirror has a focal length of 25cm and is 7.5mm in diameter
Mirror has ground edges