Enlarged approx. 3 times. Made of unbreakable high quality PVC and hand painted with non-toxic colors in a scientifically correct manner. Tympanic membrane with malleus and labyrinth with stapes can be removed. Separated into 3 parts. Mounted on a plastic base, with explanation, length approx. 330 mm, width approx. 230 mm, thickness approx. 210 mm. It is supplied with detailed instruction cards and conforms to the main EU safety standards