Boron is a chemical element which can be processed into lightweight fine diameter tungsten wires with incredible strength. This is a very different and much stronger material than graphite. Its amazing strength to weight ratio has been utilized for years in the aerospace and aviation industries where lightness and strength are BOTH extremely important. We work with the same suppliers to the aerospace industry to source our Boron composites so the advanced, high tech properties of Boron can be uniquely applied in our fly rod designs. We are a true leader in fly rod design utilizing these materials. In testing the properties of Boron composites, this material is stronger than steel, yet lighter than aluminum. Simply put, we believe there is no better material than Boron fiber to design smooth casting fly rods with high comprehensive strength and extraordinary lightness.