# Please check the profile before purchasing. This is a set of SiC rings. They can be used for repairing broken guides, or for upgrading cheap guides to SiC. There are two each of the following outer diameters: 6/7/8/10/12 mm. Please refrain from purchasing if you are overly concerned about details. Please make your decision based on the photos and any questions you may have. Basically, sales are 3NC (no claims, no returns, no cancellations). I will add more photos if requested. Thank you.