Feature●4 Pieces 1" OD x 1/4" Wall 6061 T6 ALUMINUM Round Tube 12" long 1/2" ID Seamless By BUDDSTORE●Size: 1.0" x .25" Tubing Model: 1" Diameter x 1/4" W Country/Region of Manufacture: United States Country of Manufacture: United States Shape: Square, Flat bar Material: Aluminum Metal Type: Aluminum 6061 T6511Description You are buying 4 pieces of 1" OD Round 6061 T6511 Aluminum 1/4" Wall Extruded Seamless Tubing 12" long.1" out side 1/2" in side.