Features a unique combination of an oil-encapsulated solid plastic polymer and stainless-steel materials which results in a self-lubricating, corrosion-resistant, and maintenance-free bearing- Micropores in the otherwise solid polymer evenly distribute just enough oil to keep the bearing well-lubricated, while also containing sufficient oil for it to be self-lubricating over the lifespan of the bearing, even when ridden in the harshest of conditions- Designed, developed, and hand-built in Denmark with a lifetime warranty- SLT (Solid Lubrication Technology)- OHD (Optimized Headset Design)3T, Giant, Pinarello, Scott, Specialized