Give kids a deeper understanding of how organs and internal systems interact by allowing them manipulate the inner workings of the human body. This set is perfect for human body centers. Each realistically detailed miniature plastic model includes a stand, fact guide, and photo-illustrated assembly instructions.Details:Includes 4 setsFor ages 8 and upContents:One 29-piece Heart Anatomy SetOne 31-piece Brain Anatomy SetOne 31-piece Human Body Anatomy SetOne 41-piece Skeleton Anatomy SetSize Information:Heart: 5" when assembledBrain: 3.75" when assembledHuman Body: 4.5" when assembledSkeleton: 9.2" when assembled