Introductory Chemistry Set, Includes: Hydrogen/Carbon/Oxygen/Nitrogen/Sulfur/Phosphorus/Chlorine/Fluorine/Bromine/Iodine atoms, Gray links for single and double bonds, Contains 120 durable plastic, Economical model set used for General or Organic Chemistry course
Model shows both sides of an eye, enlarged 5 x. One side of the model shows the eye socket with a sagittal cutaway and the background to the eye and the electron microscopic fine structure of the retina are shown separately.
Model Human Urinary Organs, Weight (lb):2.6, Length (in):13.0,Width (in): 9.1, Height (in): 4.3,Natural Size separates into 3 parts. Kidneys ureters, adrenal glands, bladder with prostate and major blood vessels