This item is a completed and painted, fixed-pose figure.
From the Sideshow Collectables website:
Sideshow Collectibles is proud to bring you the latest addition to the Sideshow's Dinosauria collectible line, the Stegosaurus Maquette. This dynamic maquette captures the grace and power of this ancient animal of the Jurassic Period. Designed with the insight of renowned paleoartists, each piece is cast in high-quality polystone, hand finished and hand painted to exacting standards. Presenting mother and child as they traverse the ancient forests, the Stegosaurus Maquette is an impressive museum quality piece, an outstanding addition to any display.
Product Size: 16" H (406.4mm) x 11" W (279.4mm) x 27" L (685.8mm)