This multi-part model by Lost Kingdom Miniatures is designed to fit on either a 60mm round base, or 50x50mm square base. This model does come with an aesthetic option of some of the rockets being mid-fire, or all of them sitting in their barrels.
 
We do not provide bases with any any of our prints, as we find that resin printed bases are too soft and prone to warping under stress, unless a full decorative base is part of the print.