GS-4 – Natural size, in SOMSO-Plast. Larynx: cartilages, ligaments, muscles, relief of mucous membrane and thyroid gland are shown. Tongue: the front part of the lower jaw detachable, separates into 2 parts, median section. Sublingual gland and submandibular gland are shown. Separates altogether into 5 parts. On a base. Height: 21 cm., width: 12 cm., depth: 15 cm., weight: 500 g.