5-Metal Equal Mass Cylinders Set (Zinc, Copper, Aluminum, Tin, Lead) Included_Rod & Base & Clamps and renal pelvis in a

and renal pelvis in a single cutaway for entry-level urinary anatomy teaching

Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary

this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work

the unit also runs as a motor on 6-8V DC for energy conversion demos

5-Metal Equal Mass Cylinders Set (Zinc, Copper, Aluminum, Tin, Lead) Included_Rod & Base & Clamps and renal pelvis in aFive cylinder equal mass set at 30g each in zinc, copper, aluminum, tin, and lead with densities from 2. 7 to 11. 3 g cm, giving students a wide reference range for density analysis.