Optical Lens Set, 2", 6-Piece, Convex and Concave Material_Polypropylene illustrating molecular symmetry and bonding

illustrating molecular symmetry and bonding geometry

and wood for multi-material pendulum

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

Aluminum 40cm precision force table with tapped pulley positions and central ring assembly for resolving and composing force vectors under equilibrium conditions

Optical Lens Set, 2", 6-Piece, Convex and Concave Material_Polypropylene illustrating molecular symmetry and bondingSix 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.