The CURT Replacement Round Bar Weight Distribution Retainers is part of a specialized towing system that provides improved vehicle and trailer control by leveling the trailer and more evenly distributing its tongue weight across the trailer's and vehicle's axles. Weight distribution hitches are commonly used on travel trailers and campers but can also be applied to other large loads. This replacement retainer kit is made to fit round bar weight distribution hitches. It includes 2 retainer clips, 2 locking pins and 2 rivets. Look for more quality CURT replacement parts today.