[Pathological anatomical model of mouth, nose, throat, and throat]: human anatomical nasal cavity throat shows in detail the pathological changes of the nasal cavity, oral cavity, pharynx, larynx, etc [meticulous and realistic]: Nasal Cavity Model adopts real human body remodeling, high fidelity, digital logo, easy to observe and explain [Easy to observe]: Cavity model advanced painting, bright color, not easy to fade, long use time [Safety]: pharynx model made of matte pvc material, -, light weight, no peculiar smell, is a safe and healthy synthetic material [Function]: nasal cavity model is used for patient education and anatomical research (Different batches, base styles are random, don't accept the specified styles.and product appearance is also slightly different) Colour: As shown Material: pvc Size: 23.5 x 11 x 11CM Package Contents: 3 * Nasal Cavity Throat Anatomy Model Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.