The R-17CS Continuum Add-On Set is for the R-17 Carnifex figure. This kit includes two 3.5cm tall Millifex and Billifex pilots of the jet and tank that combine to form Carnifex. Millifex and Billifex transform to engines and plug into Carnifex's chest in robot mode. An alternate head and 2 pieces of snap-on chest armor will give Carnifex an updated look. Plug the 6 cannons in to the base mode for enhanced firepower.