CURT QuickPin No-Latch A-Frame Trailer Coupler for 2-5/16-Inch Hitch Ball, 14,000 lbs Model 25474CURT QuickPin No Latch A Frame Trailer Coupler for 2 5 16 Inch Hitch Ball, 14,000 lbs Model 25474 The CURT QuickPin trailer coupler is a revolutionary coupler design, doing away with the traditional latch mechanism for simple, stress free trailer hookup. Most couplers use a complicated hinging latch that's prone to wear out and become corroded, leading to difficulties and frustration. Instead of a latch, QuickPin uses a simple hitch pin to create a