3B® Anatomical Model - Lumbar Spinal Column with Dorso-Lateral Prolapsed DiscProlapsed Lumbar Section is made of natural cast. The spine consists of the five lumbar vertebrae, sacrum, spinal cord and paired spinal nerves. A section of the sacrum shows the branching cauda equina. Also with L3-L4 dorso-lateral prolapse. 13" length mounted on base. Product Specifications BRAND3B Scientific® MANUFACTURERS PART NUMBER12-4543 LENGTH INCHES5-1/4 WIDTH INCHES14-1/4 HEIGHT INCHES5-1/4 WEIGHT LBS3 DESCRIPTIONLumbar Spinal Column with Dorso-Lateral Prolapsed Disc TYPESpine Models PACKAGE QUANTITY1 LIMITED WARRANTY1 Year