Item Type: Vertebral Column Model Purpose: Very suitable for biology and anatomy courses and patient education Material: PVC Length: Approx. 45cm/17.7in Package List 1 x Vertebral Column Model 1 x Base 1 x Bracket 2 x Half Leg Bone 1Human Caudal Vertebra Column Model: Suitable for patient education and anatomical study. 2High Quality Material: Spine Model is made of PVC, which is corrosion resistant, lightweight, and has high strength. 3Human Cervical Spinal Column Model: You can clearly see all main anatomical structures of Cervical spinal column. 4Visually Informative: Nature helps patients better understand their conditions treatment plans, can significantly raise level of patient compliance. 5Where To Use: Coccygeal vertebra model is a perfect display for patient education in a doctor's office or a healthcare facility.