WIDE APPLICATION. Widely used for hospital, doctors , anatomy classroom, advanced and clinicians, laboratories, school medical presentation, and scientific reaserch institutes, educational purposes only. 1:1 LIFE SIZE. This anatomical lung model size: 4.33 x x 8.85 Inch. Perfect for the research and clinical settings. A professional anatomy teaching presentation model for medical lecture report, doctor . FOR CARDIOLOGY STUDY. This anatomical human heart model shows the basic anatomical detail of huaman heart. A professional medical teacing model for cardiology study, demonstrating of the heart bypass . REALISTIC TEXTURE. Designed to replicate and show the real anatomical structure of human heart. Advanced computer colorful painting, various colors are for distinguish different positions. Realistic structure, easy to observe and view. TOP QUALITY, REUSABLE. PVC , good durability, resistant, lightweight, and has high strength, not easy to fade and deform. Non-smelly, , reusable.