5-Metal Equal Mass Cylinders Set (Zinc, Copper, Aluminum, Tin, Lead) Included_Rod & Base & Clamps Research-grade oxygen spectrum tube at

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

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

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

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

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

5-Metal Equal Mass Cylinders Set (Zinc, Copper, Aluminum, Tin, Lead) Included_Rod & Base & Clamps Research-grade oxygen spectrum tube atFive 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.