Package Included: Package: 1PCS Material: Aluminum 6061 Diameter: 3 inches(75mm),±0.05" Length: 13 inches (330mm) Feature: 1.Good material for DIY craft making. 2.6061 aluminum is a lightweight, general-purpose aluminum alloy that can easily be machined or welded. 3.The longer length is enough for you to cut at will. 4.It has a high resistance to corrosion, and an excellent weight-to-strength ratio.