Great Quality: 4 Times dental implant model is made of imported resin material and metal. Environmentally friendly, non-toxic, durable Removable Implant Crown: This implant teeth model is composed of removable implant crown and abutment Features: Removable 3-unit bridge crown, iwhich will help to know of the type and structure of adult's teeth easily Different Application: Dental teeth model is a great choice for dentist studying, teaching, researching and dental lab using Stable base: The base of the dental implant model provides firm support to ensure that the model remains stable during display and teaching