Czech Hedgehog Anti Tank Obstacle (Green Stuff World)Czech Hedgehog anti tank Obstacles that simulate reinforced concrete and steel to block and divide areas in different contexts. They are made of high quality resin, are textured, and are highly detailed to give a hyper realistic look to your project. The pointed anti tank obstacles, known as Czech Hedgehogs, were developed in the Czech Republic during World War II to prevent armored forces from crossing the line of defense. They were used to block