Model: Simulate human heart anatomy model (1: 1 enlarged ), teaching model, it is a great tool for teaching and learning of human heart structure. Structure: The natural large human heart, 2 parts, shows the normal morphological structure of the heart, veins and valvular structures. Wide Applications: This product can be used in teaching, exhibition, doctor patient communication, observation, biological research, etc. It is a high quality biological teaching model. Teaching Aids: It can be used as a biological teaching aid, and it is great for teaching and studying by doctors or other professionals. Material: PVC material, strong and durable, meticulous workmanship, round and burr free, will not hurt your hands, and feel smooth. Specification: Material: PVC polyvinyl chloride Scale: 1: 1 Size Chart: 7.5x6.5x17cm/2.95x2.56x6.69inch Package Includes: 1x Human Heart Anatomy Model Note: 1. This is not infant toy , please take away from kids to avoid eating. 2. Please allow slightly error due to manual measurement. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 4. Wish you a wonderful on-line shopping!