6-Piece Glass Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Physics_Electricity & Magnetism Five-pulley set of tandem low-friction

Five-pulley set of tandem low-friction plastic pulleys at 25

Four-metal block set at 2 by 0

this single burette clamp in powder-coated alloy holds any burette up to 100 mL on support rods up to 16 mm diameter during titration work

converging and diverging meniscus

the 90-45-45-degree faces redirecting light through right angles for total internal reflection and image-inversion demos

6-Piece Glass Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Physics_Electricity & Magnetism Five-pulley set of tandem low-frictionSix piece glass lens set at 38mm diameter covering double convex, double concave, plano convex, converging meniscus, diverging meniscus, and plano concave geometries.