Perfect molecular models of Adenine, Thymine, Guanine, Cytosine and Uracil. You can pick and match any combination. A might normally match A with T (AT) and C with G (CG). This is as fun as it gets. What a gift for yourself, a work mate or spouse. Note: since Uracil is just about the same as Thymine, you might consider interchanging the two molecules and treating them thusly as the same shape. Each earring isabout0.75 inches long.
