Model, Pyrite Crystal, The mineral pyrite, or iron pyrite, also known as fools gold, is an iron sulfide with the chemical formula FeS2, metallic luster and pale brass-yellow, contains 40-1 inch balls, Dimensions: 24 x
Model Rat Brain Comparative Anatomy, model shows a rat brain in approx. 6-fold enlargement. Sectioned medially, two halves, The right half of the model shows the structures of the cerebrum, cerebellum and brain stem, Dimensions : 14 x 10 x 16 cm
Model Respiratory Organ, unbreakable life-size model is distinctively colored to illustrate anatomical detail. Includes diaphragm, aorta origins of five abdominal arteries, three thoracic and lumbar vertebrae, sectioned left lung, Dimension: 16x9x71/2 in