The DNA - RNA Double Helix Anatomy Model is a small DNA-RNA model from 3B Scientific and manufactured in Germany. This model shows the double helix and how the molecules split at the center of the base pairs. The DNA-RNA Model includes: 30 colored tubes (Guanine red, Cytosine green, Thymine blue, Adenine gray, Uracil white); 12 white two prong center, which represents the hydrogen bond between the base pairs; 28 black trigonal atom centers which represent sugar; 25 red two prong atom centers, which represent phosphate groups; 50 yellow tubes that link the phosphate groups to the sugar rings. This model includes a wooden base with a support rod. This anatomical model is best used for student education and/or patient consultations. The DNA - RNA Double Helix Anatomy Model is 7.9 x 11.8 x 0.2 in and weighs 0.22 lbs.