[Size]- 17X17X13cm/6.6X6.6X5.1inch. Detailed enough to satisfy students, doctors or anyone interested in the animal skin structure. [Dog Skin Diseased Model]- The model is divided into four different sides, one side is healthy, and the other three sides show different disease states. Made of high quality PVC material, it can withstand frequent use and handling. It has realistic design and colours to enhance your learning experience. It is easy to carry and observe due to its compact size and sturdy base. [Built To Last]- Made of new PVC material, no peculiar smell. The material and color of each model are strictly controlled. Designed to be easily cleaned and to withstand high temperatures, realistic and no odor. They are suitable for use at home, in the classroom or in science clubs.