Optimas Prime Truck Chief Commander Autobot - 28mm or 32mm Miniatures RN Estudio Mini Transformers Vol 1Figure can be purchased with or without a base. Base will come separately and will have to be attached on arrival using an adhesive like super glue. Available in both 28mm and 32mm scale. See link at top of page for more info on model scaling. Scale does not mean the height of the mini. It's a relative number, where 32mm (at 32mm scale) is the normal height of a human. Smaller figures will be smaller. Some minor assembly may be required. See link at