Using your Transformers Devastation Optimus Prime action figure is a blast. To convert it from robot to truck mode, just follow the 21 - step process as described. When playing, you can pose it in different action stances thanks to its articulated parts. For display, attach the Energon Axe and Matrix of Leadership accessories to make it look even more amazing. When not in use, keep it in a dry place away from direct sunlight to prevent any color fading. Avoid rough handling to prevent any breakage of the small parts. If it gets dirty, you can gently wipe it with a soft cloth. Have fun with your Optimus Prime figure!