About this 3D model

Simple Lungs and Diaphragma Model to show the principle of breathing Needed: 3D printed parts (Costa and Larynx) PET bootle 2x ballon Rubber bands (min. 2x - for lung/first balloon and diaphragma/second ballon[cut on top]) Insulating tape Straw (approx. 8 mm diameter) Inspired by: https://youtube.com/shorts/TKbEOajhvu8?feature=share