Advanced Direct Vision Spectroscope in Wood Case, Alternate Model Material_Steel this polypropylene graduated cylinder set

this polypropylene graduated cylinder set is Class B-tolerant

and HVAC work

and vascular cylinder for plant anatomy and absorption teaching

Half-size digestive system model fits smaller class benches while preserving the full esophagus-to-rectum path and accessory organ anatomy in two removable parts

Life-size human skeleton model features flexible spine

Advanced Direct Vision Spectroscope in Wood Case, Alternate Model Material_Steel this polypropylene graduated cylinder setWood cased direct vision spectroscope built around a 3 element prism stack, with adjustable slit and draw out focusing for examining the spectral composition of light sources.