Dental Rubber Base Formers with glossy interiors produce perfectly smooth and symmetrical bases for study models quickly and easily. Thick walls maintain their shape during vibration. Durable, Designed for long life. Produce models without the hassle and mess of model trimming. Plaster or stone can be poured into the Model Former and the anatomical cast is mounted. After the plaster has been set, a smooth and perfectly finished set of models is effortlessly removed from the soft, flexible rubber of the Model Base Formers. Upper and lower study models will occlude automatically. The Set of Model Base Formers includes one Upper & one Lower jaw. Dental Model Formers are used by dentists in dental offices or for practicing students in Dental Schools and Colleges.