DS-5 – Enlarged approximately 3 times, in SOMSO-Plast. The petros portion of the temporal bone and section of the auditory canal are removable, the labyrinth can be taken out and opened. The tympanic membrane with malleus and incus can be removed. Altogether 6 parts. On a base, with explanation. Height: 21 cm., width: 32 cm., depth: 19 cm., weight: 1.5 kg.