This is a set of 2 replacement flint wheels for oil lighters! Two rivets (pins for mounting) are also included. 【Size】Diameter：11 mm：Thickness：3 mm This is the part you rotate with your finger when igniting. By replacing the flint wheel, you can get a stable spark. For those who are replacing it for the first time, we will enclose a QR code that allows you to view the instruction manual website that describes the procedure and necessary tools.