As one Professional teeth models supplier,we are keeping suppling decent quality products.The orthodontic dental Teaching and explaining teeth model,showing the tydodont and Dental restorations demonstration.Upper jaw and lower jaw clear anatomical structure and Education purpose is very necessary for patients ,kids,students and other adult people.NOTE:we update this product,the old one will not sell to people,the new one is more superior shape and quality，please notice that.the product is all the same with our website picture ,but is not same with the review show,which is older version.Thanks