3D Paramecium Sectional Anatomical Model on Base with Removable Parts, 18 x 8 inch Class_Class B the bulky triangular geometry handling

the bulky triangular geometry handling wider beams for total internal reflection

generating opposite charges along its length to compare negative and positive triboelectric behavior side by side

Long-format 150 x 10mm chrome-steel cylinder pair with half-red

Three-prong laboratory clamp with rubber-coated chemical-resistant prongs and a 4

this Alnico U-shape carries 45mm pole spacing for compact-bench field demonstrations and motor-effect setups

3D Paramecium Sectional Anatomical Model on Base with Removable Parts, 18 x 8 inch Class_Class B the bulky triangular geometry handlingThree dimensional Paramecium sectional model with removable parts reveals cilia, oral groove, nuclei, and internal organelles for protist biology teaching.