Full size Spine normal L2, L3 and L4 with intervertebral discs and lumbar nerve section. Fully articulating model. Model size: 3-1/2" x 3-1/4" x 3-3/4" Card size: 6-1/2" x 5-1/4" 5" x 6" x 1" Grey Base included with every model. Made of durable high quality materials.