8 A4 sheets containing pictures of Zak. On the front of each sheet there is a picture of his body and on the reverse there is a picture of the bones which lie beneath the skin. These two images are aligned precisely so that when the sheets are held to a window or placed on a light box the bones show through. The effect is stunning!Comes with word bank to label bones. Body parts shown include the entire skeleton, the arm, leg, chest, hand, foot, pelvis and skull.