Using Swiss-made hardened chrome steel alloy balls and lightweight, friction-resistant Delrin® retainers, KwiK Swiss Nitride bearings – the surface where friction is created with alloy balls – are coated with a thin layer of titanium nitride, a durable, chemical-resistant material that will not flake, dissolve, or degrade, even under the most extreme skating conditions.
 The titanium nitride coating finishes the KwiK Swiss Nitride bearings in a beautiful metallic gold appearance and also strengthens them to produce the longest and fastest roller available today.