Fulton Trailer Coupler 2-1/2" #220-222500101 Channel Size: 2-1/2", Ball Size: 2", Max. Load: 3500lbs, Class II Made in USA. Hooks up quickly and easily to tow vehicle. Heavy-duty safety latch designed to prevent accidental uncoupling. Padlock hole provided for trailer security. Factory adjusted to ball size. Serviceable ball clamp assembly for field replacement. Zinc finish.