Moto Swiss Bearings are the most technologically advanced bearings in skating today. These bearings are built with precision swiss parts that are bonded with an extremely hard “tinite” ceramic coating, and also feature the industry’s only “oil thru” shields. This means that when oil is placed on the bearings it is distributed evenly. The Tinite coating process hardens the running surfaces and not only improves durability and glide, but also reduces friction, which requires less oiling. The coating also give these bearings the rainbow look to them: function and fashion!