Both of the designs are two-piece plastic shells with colored opaque plastic side stripes. The nano version comes with five total sets of colored side inserts?two pieces each of blue, green, pink, black, and gray?which slide into the two clear halves of the case to hold them together. By comparison, the 5G version must be purchased in your choice of either white or black stripes, and the size that fits your iPod (30GB or 60/80GB).?

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