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This is the Model 230 and comes with a Money Back Guarantee and a 1-Year Factory Warranty. This IS NOT an irregular, second quality, promotional grade, or reconditioned model. One and one half times the size of a Child's Ear. Illustrating semi-circular canals and cochlea of the inner ear; auditory ossicles, otitis media (inflammation and (simulated) fluid in the middle ear); tympanic membrane and temporal and tympani muscles; the model also presents a horizontal eustachian tube typical of a child. Model size: 4-3/4” x 4” x 3-1/2” • Card size: 6-1/4” x 5-1/4”

Please allow 7-10 business days for delivery