Full size cut-away normal model depicts a near median section through the nose and nasal passages. Details include nasal cavity, soft and hard palate, uvula, eustachian tube and pharyngeal tonsil. Back side shows ethmoid and maxillary sinus cavities. Sinus anatomy model size: 4-1/2" x 5/8" x 5-1/4" Card size: 6-1/2" x 5-1/4" 5" x 6" x 1" White Base included with every model. Made of durable high quality materials