A-Frame Retort Base and 23.6" Rod Set, 8.5 x 8.5", Heavy Duty Geology Specimens_Minerals and a distinct euhedral crystal

and a distinct euhedral crystal habit

configurable as a heavy pendulum bob or a demonstration mass for Newton's-first-law setups

Charged porous pot with a zinc rod inside a rectangular polythene jar

Tensiometer-based soil moisture data-logging sensor reading 0 to 50 cBar by detecting vacuum in a water-filled ceramic tip

Heavy-duty 6 by 4 inch powder-coated steel retort base weighing 4 pounds

A-Frame Retort Base and 23.6" Rod Set, 8.5 x 8.5", Heavy Duty Geology Specimens_Minerals and a distinct euhedral crystalThree point A frame powder coated base at 8. 5 by 8. 5 inches, 3. 3 lbs, threads a 23. 6 inch 12mm steel rod into a 10 by 1. 5mm tapped hole for tall apparatus support.