Optical Lens Set, 2", 6-Piece, Convex and Concave Material_Polypropylene Optically-worked glass double convex lens

Optically-worked glass double convex lens with a 150mm focal length and 1

reading -50 to 300°C at ±1°C accuracy up to 200°C for a range of lab heating

illustrating molecular symmetry and bonding geometry

Beaker-themed beer pong set includes 12 polypropylene 500mL beakers and 2 pong balls for chemistry-themed party gameplay

Built for kitchen science whimsy

Optical Lens Set, 2", 6-Piece, Convex and Concave Material_Polypropylene Optically-worked glass double convex lensSix lens optics set of three double convex and three double concave glass lenses with ground beveled edges, designed for image formation and focal length investigation.