Product advantages: Real bone textures have the same weight and tactile sensation as real bones. 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 bones. Product name: 5-segment lumbar spine with sacral accessory Structure: Human skull skull model Category: Plastic bone model of human body : 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.