This item is discontinued and no longer availableTRANSFORMERS CONSTRUCTION BOTS WARRIOR OPTIMUS PRIME - Build change and combine with the Dinobot Warriors! These Transformers Construct-Bots come in pieces and it's up to you to build them in one of their 2 modes. With the 58 pieces in this set you can build your Optimus Prime figure as a robot warrior or pounding semi truck. Then you can convert him to the other mode or tear him down and build him again! Build Gnaw Dino as a fearsome ally in dino mode ? or you can convert or build him as armor for your Optimus Prime figure to wear! Build the best Transformers adventures with this robot-dino duo!