Artery and vein pin looks bloody cute on you! These tubes move blood around your body. Arteries carry blood away from the heart and veins carry blood to the heart. Capillaries connect arteries and veins; this is where oxygen and carbon dioxide are swapped! Blood is a liquid that flows inside every inch of your body through a network of tubes called your circulatory system. Your blood carries fuel, food and messages inside your body. It also provides defense and removes waste. Your blood visits every single cell, making deliveries and taking out the trash. Your circulatory system is powered by a powerful pump -- your heart! Printed aluminum pin measures 1.25" tall and was made in China.