Consisting of atlas, axis, another cervical vertebra, two thoracic vertebrae with inter-vertebral discs and one lumbar vertebra. On stand, removable. Now included with all 3B Scientific Anatomy models is the 3B Smart Anatomy app. This app allows users to register their 3B item to extend the warranty from 3 to 5 years plus free 1 year access to the 3B Smart Anatomy app which includes 23 Anatomy lectures, 117 interactive models and 39 quizzes.