YM-209 DNA MODEL KIT

Students construct two complete DNA segments with this set. The
components consist of four nucleic acid bases:cyto-sine, adenine,
guanine and thymine, that sine, adenine, guanine and thymine,
that are designed so only the proper bases fit together. Includes 48
bases, four strand, two supporting rods with penestals and
illustrated instructions. Size (cm): 12 x 12 x 46