1、[Silicone Material] Left ear model is made of premium silicone, no bubbles and other defects. Soft, not easily deformed, waterproof, sturdy and durable. 2、[Professional Structure] The main body is deeper, not only contains the ear canal, but also the base area is larger, so it can be installed in the dummy's head, etc. 3、[Practical Tool] This left ear model can clearly show the inner and outer structure of the ear, which is perfect for store window display and ear impression practice. 4、[For Hearing Aid Wearing Display] The silicone human ear model can also be used as a necessary tool for hearing aid wearing demonstration. 5、[Multiple Applications] Artificial ear model is suitable for ENT doctors, hearing aid centers, hearing aid dispensers, hospitals, ENT pharmacies, etc.