1. Lifelike appearance, realistic texture

2. Clear anatomical landmarks, include the inferior edgeof costal arch, xiphoid, anterior superior iliac spine,iliac crest, etc.

3. Interchangeable between left and right lateral positionfor abdominal shifting dullness percussion

4. Abdominal puncture can be practiced when model liesin tilt position or left lateral postion.

5. Successful puncture will feel realistic feedback, allowextracting seroperitoneum