This set of 2 kits enables you to build both the U.S.S. Grissom and the Klingon Bird of Prey as seen in "Star Trek: The Search for Spock"! Based on CAD design, these kits do not require glue for assembly! The U.S.S. Grissom will be about 12cm long and the Bird of Prey will be about 16cm long when completed. The Bird of Prey includes two pairs of wing and baffle parts so it can be built in either attack mode or cruise mode. A base for each ship is included for display. Order it today!