4-Piece Specific Gravity Cubes Set with Hooks Lab Supplies_Tongs Entry-level two-part human skull model

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

and bladder in anatomical position

with masses between 50 and 400g for 5N spring-scale suspension work

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

4-Piece Specific Gravity Cubes Set with Hooks Lab Supplies_Tongs Entry-level two-part human skull modelFour cube specific gravity set in brass, iron, aluminum, and zinc, each 20mm on edge with a top hook for suspending in water during Archimedes principle and buoyancy experiments.