The WARN 20990 Premium Manual Hubs offers all metal construction with wave spring technology that increases reliability over standard coil springs. Zinc aluminum alloy dial seals, ensures years of reliable functioning by keeping contaminants out. It is controlled through tough OEM manufacturing requirements. Offers limited lifetime warranty; 9/10 turn dial for robust engagement/disengagement. This is a pair (2) of internal mount hubs, for use with 19 spline axles, compatible with many different vehicles.