WHY CHOOSE YOUXMOTO TRAILER BRAKE KITS? * Good dynamic balance; High fatigue strength. * Good stiffness and elasticity; High precision without runout. * High temperature resistant lithium ester. * Design from professional factory , Improved performance. * SIZE: 5 on 4.5" bolt circle; For 3,500 lbs Trailers (For trailer use only.) * FITS For Dexter, For Al-Ko, For Lippert, For Hayes, For Rockwell, or Quality trailer axles. * * Package: * Brake drum 5*5"*1Cone bearing for L68149*1Cone bearing for L44649*1Grease seal 1.719" x 2.565"*1Grease cap*1Wheel nuts 1/2"-20 thread*5 * * Warm tip: Youxmoto provides 8-hour fast response and lifetime return service, please feel free to buy.