Optimus Prime Trailer with Armor is a trailer mode (complete) to go with a Kreon Optimus Prime (not included). The trailer can be in original G1 mode or Powermaster mode. There are also armor parts to turn Kreon Optimus Prime into Powermaster Optimus Prime (not included).
Sizing: Kreon Optimus Prime with armor is 2.1 inches tall, making him slightly taller than a regular Kreon figure (1.75 inches). The Trailer with cab is about 2.5 inches long and 1 inch high. Custom Kreon Size Comparison