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

Miniature desktop torso with 12 removable parts includes a dissectable head and brain for compact classroom anatomy and biology teaching

this universal clamp holder accepts rods up to 20 mm in diameter and bolts securely to retort stands for oversized load support

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

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.