Hello, I work with Step Skates. Let me clear things up;: - We offer replacement runners in all models and sizes, in high quality Stainless Steel. All our blades go through extensive quality control operations to ensure they are within the standards that we have established. - We also offer all these models and sizes in our V-Steel. The V-Steel is a highly polished blade. The smoother the side finish, the better edge surface. - We are now offering Goldsteel and BlackSteel. Both are coated runners. GoldSteel: Ceramic based Titanium coating. Blacksteel: DLC coating. Both are coated on a V-Steel surface wich is a upgrade. The coated blades will start being available early october. It will take a certain transition period for stores/shops to get in on these new blades. Visit the Step Skating Blade facebook page. For now, it is the most up to date source of info.