1. A male half-body structure with anatomical features. Pneumothorax decompression exercises can be performed.
2. Correct anatomical marks are used to help locate training.
3. Provide bilateral bone midline second rib gap or midline The fifth intercostal space can be used for thoracic decompression training to discharge gas.
4. Hand-pinch inflation is very convenient.
5. Puncture can be repeated several hundred times in the same lung sac.
