K&S Brass Round Tube Stock, 9/16 In. O.D. x 1 Ft. is a versatile and commonly used material i for a wide range of projects. This brass tube is favored by craftsmen, handymen, machinists, hobbyists, and modelers for its reliability and ease of use. Whether you are working on detailed models or mechanical components, this brass round tube stock excellent performance and durability. Model Number: 8141