This male pelvis skeleton replica consists of hip bone, sacrum with coccyx and 2 lumbar vertebrae. This high-quality anatomical model is a great addition to any anatomy classroom or doctor's office. This skeleton is great for detailed anatomical study of the male pelvis. 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.