Polypropylene Laboratory Tray, 18.5" Physics_Force & Motion Range-rated 50mm double-concave glass lens

Range-rated 50mm double-concave glass lens spanning 300-1000mm focal lengths

displayed on a plastic-and-metal rack with a carrying handle for transport

Used to find resonance points in an open air column by sliding the tube length against a struck tuning fork

5-inch bow-style crucible tongs grip hot crucibles firmly against slip while the bow curve clears tall vessel walls during removal from a muffle furnace

Polypropylene Laboratory Tray, 18.5" Physics_Force & Motion Range-rated 50mm double-concave glass lensChemical and temperature resistant polypropylene lab tray with wide carry lips, sized to organize glassware, contain spills, and ferry equipment between stations.