Our Surgical Steel D Rings are all 316LVM. They are NOT the cheaper commercial grade of 316L Surgical Steel that you are usually offered in Body Jewelry. Captive Bead Rings comes with a Surgical Steel Bead. These rings are used in most all piercings, and are the perfect choice for most first time piercings.
The "size" is the straight shaft length, so if you need say a 1/2" straight barbell then you will want to order a 1/2" D-Ring.