Product advantages: Real bone textures have the same weight and tactile sensation as real . The Perfect teaching model in medicine makes communication between doctors and patients more convenient, and the workmanship meticulously and clearly represents every detail of the human body's . Product name: 5-segment lumbar spine with sacral accessory Structure: Human skull skull model Category: Plastic bone model of human body Purpose: Teaching equipment Note: Due to different production batches, there may be slight differences in products. Material: PVC colour: As Shown Package Contents: 1 x Teaching equipment model Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.