Premium Spectrum Tube Power Supply Subcategory_Molecular Models Hand-painted 4-part human brain model

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

and phosphorus for organic-chemistry work

and extraocular detail for ophthalmology and sensory anatomy teaching

Twenty-centimeter steel helical spring paired with 2kg

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

Premium Spectrum Tube Power Supply Subcategory_Molecular Models Hand-painted 4-part human brain modelBuilt to excite gas atoms inside spectrum tubes, this premium power supply drives atomic emission demonstrations that reveal each element's characteristic spectral lines.