What's Inside Animals - This set includes 16 beautiful animal images on the front of plastic sheets. The images are protected with a special, scratch-resistant coating. Examine the photos and then place them on a light table or in a window to reveal the skeletal system of the animals! Flip the cards over to get a better look at the skeleton. Compare and contrast the image of the human to the walrus, giraffe, snake, owl, etc. Includes: 16 animal x-rays including 2 human images. Cards measure 22 x 28cm. Age: 4+.