Transformers Kre-o Cell Block Breakout Set is part of the Transformer Kre-o Construction Brick Toyline. Each Transformers Kre-o Construction Brick Set features a G1 or Transformers Movie series character that can be rebuilt into their alternate vehicle or animal mode. Start your Transformers Kre-o Construction Set collection today with Cell Block Breakout Set. Add this highly sought-after piece to your collection today at TFSource, your source for Hasbro Transformers Collectible Action Figures.