This set contains the four vessels of the US crewed space program to date: Mercury, Gemini, Apollo, and the Space Shuttle.
Buying all four at once gets you a discount over purchasing individually.
Ornaments are engraved on one side and fitted with a ribbon for hanging.
Wooden ornaments are available in maple (light-colored) and walnut (dark-colored).
Acrylic ornaments are available in gold mirror or silver mirror. For the mirrored ornaments, only one side is mirrored and the reverse side is gray.