The 45 is cool but this 45 with soft polish titanium liner is even better! I try to ensure a very minor gap between these two materials. With this 45 ring I simply rotated my normal 2x2 twill fabric 45 degrees prior to cutting and layup to produce a very interesting visual effect. My polished finish offers a semi gloss ring with a very durable surface. No coatings are used in any of my rings. Each ring machined from a chunk of titanium and molded from a prepreg carbon just like you'd find in an F1 car. The interior is soft polishd to 1500 grit while the exterior is wet sanded through 10 stages of sanding with a final application of buffing compound. I make this ring in standard sizes 4.5-13.5 in whole and half sizes. I don't offer 1/4 sizes at this time. If you don't know your size please visit a your local jeweler and get sized. This only takes a few minutes and most jewelers are happy to help you even if you don't buy from them. Please do not guess on your size so that you can start wearing your new ring right away. This ring ships in about 3 weeks.