Busy hands build strong minds! Learn about Human skull with this fun 4D anatomy puzzle! Model has detailed, realistic bones to show the skull structure. Challenge your critical thought and mental acuity. Build dexterity, fine motor skills and problem solving skills. Reinforce learning through hands-on exploration!Features include:– 5.75″ model with 17 pieces and a display stand.– Illustrated assembly guide included.– Learning guide included with the description of the anatomy and how a human skull works along with some fun questions to test your knowledge!– Ages 8+