Revell X-ray kits have clear parts to enable internal parts,such as organs on animals, to be seen once the model has been assembled.
Fascinating anatomy models of frog, horse etc with 20 to 30 single parts. The animals are authentic duplicates with skeleton and organs. The specialty is that even after having built the models together they allow to see the interior of the animals due to some clear parts.
Great models that explain the nature to young scientists and take them to a journey around the anatomy of the world of animals.