Highlights: Material : Brass Size : 17/32 x .014 x 12" Easy to cut and solder For hobbies and model building Each size telescopes into the next corresponding size Used by craftsmen, machinists, hobbyists, and modelers for a variety of projects Carded. These round tubes are brass, very strong but light weight. Each size telescopes into the next corresponding size. For use in plumbing, HVAC and automotive. It can be soldered, glued, polished, cut and bent to whatever shape required. Tubes are individually bar coded for ease of sale. Easy to bend and cut and Endless project uses. Round shaped hollow tube. Its is easy to use and It is highly durable.