Vertebral Column Model Exercise Mats RailTM easily folds up to 416700 RailTM easily folds up to store out of the way and will not accidentally fall down causing an impact injury * Unmatched sturdiness unlike other fold down rails that wobble the P * Weight Limit Description: None if sized to user Highly detailed life sized model shows all significant features for each vertebra including vertebral body spinous and transverse processes vertebral notch and spinal canal * Features include 29 tall vertebral column complete pelvis sacrum occipital bone and vertebral artery all nerve branches and herniated lumbar disc * Includes a chrome table top hanging stand *