3-Piece Large Acrylic Block Set for Light Demonstrations (Rectangle, Equilateral, Right Isosceles) Subject_Zoology ground to polished beveled edges

ground to polished beveled edges and usable as a top-spinning base in secondary mechanics demonstrations

Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA

Open-base DC motor-generator activity model with a 2-pole enameled copper armature

Mid-range single-decade resistance box stepping from 100 ohms to 1000 ohms in 100-ohm increments

3-Piece Large Acrylic Block Set for Light Demonstrations (Rectangle, Equilateral, Right Isosceles) Subject_Zoology ground to polished beveled edgesDesigned for class front light and prism demos, a 3 piece large acrylic block set ships a 7. 5x4. 3 inch rectangle, 7. 5 inch equilateral, and 7. 25x5. 1 inch right isosceles, all 23mm thick.