Convex Mirror, Material: Glass, round, designed for physics and educational use, Because of their educational use design, there may be minor imperfection that do not affect physical function, thickness varies as they are not designed, Size: 3in Diameter, 100mm Focal Length, 2.8mmThick
Jar, Polystyrene Have A Wide Mouth And A Pvc Lid, Its Polystyrene Design Helps To Prevent The Jar From Breaking, Making It Ideal For The Lab Or Classroom Setting, Size: 8 Oz 70/400 Lid