This round tubing is comprised of Carbon Fiber Braid and Unidirectional Fabrics. This product is ideal for building light weight frames and structures. Our Carbon Fiber round tubing has been engineered to be much stronger under torsional and side loading than pultruded tubing. Our tubing is also significantly lighter than pultruded tubing. Our carbon fiber round tube has been designed so that the unidirectional layers are captured in a sandwich structure, eliminating longitudinal cracking and splitting. Two options for finish on this tube are available. Natural, where the finish shows the texture of the carbon fiber braid with a wet shiny appearance and gloss, which has a flatter, more uniform glossy surface. Dimensions are taken from the inside.