Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Lab Supplies_Scoops & Spatulas copper's high conductivity minimizing heat

copper's high conductivity minimizing heat loss during mixing in thermodynamics work

supplying a duplicate-value option for paired-bench experiments on capacitor energy storage

Dual-screw adjustment on a heavy-duty spring-loaded three-finger jaw opens to 2

beam-bending

Yellow 150mm 4mm-stackable safety lead rated to 12A with shrouded nickel-plated pins

Optically Worked Double Convex Glass Lens, 200mm Focal Length, 38mm Diameter Lab Supplies_Scoops & Spatulas copper's high conductivity minimizing heatOptically worked glass double convex lens with a 200mm focal length and 1. 5 inch diameter, polished and ground for image formation and refraction demonstrations in physics.