This is a marvelous set which can be used to understand Cranial Base Patterns and the significant anatomical details of these reference bones. The detail is excellent and all the anatomical landmarks are clearly represented. By studying the Cranial Base Patterns, it becomes easy to see how all the other bones of the cranium are effected by distortions between and within these bones. Models by Somso are world renown for their excellence and durability. This set comes in a hard-shell plastic case so they can be easily kept together.