Build a detailed 2-in-1 Lego® optimus prime model that converts from a robot to a truck and back again. Lego Theme: Lego Icons Learning Skill: Motor Skills, Creative Thinking Recommended Ages: Adult Assembly: Ready-To-Assemble Base Material: 100% Acrylonitrile Butadiene Styrene Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.