From the front of the book:
3 Merchant ships in xxmm
Banner Class, 125 tons
Voyager Class, 275 tons
Zephyr Class, 300 tons
For use with Space Opera the complete Science-Fiction Role Playing Game.
Basic ship designs are from; Seldon's Compendium of Stracraft 1.
Also compatible with other popular science-fiction role playing games
This product (in 15mm) was a 4 page booklet, 9 11x17 maps and a set of counters)