Outer Diameter:22 24 30 35 40 50mm
Inner Diameter:17 25 34 44mm
Thickness: 2.5 5 10 20 25mm
Material: Aluminum 6061
Finish: Color Anodized
Color:Black Blue Gold Red Silver Titanium Purple
Warranty: 1 year warranty for all kinds of products
Origin: Jiangsu, China(Mainland)