Connor Trailer Coupler - 2" Ball 3" Width Trailer Tongue, 1617180 Boat Trailer Coupler FITS AS A STANDARD STRAIGHT TONGUE COUPLER  2" ball size, 3" tongue width ROAD READY AND SAE-684 COMPLIANT  Tested as a Class 2 coupler at 3,500 lb. GTW EASY TO INSTALL  Durable spring and latch mechanism allows for fast and consistent connections INSTALL WITH COUPLER PINS OR LOCKS  1/4" lock hole for coupler locks EXCEEDS SAE J-684 STANDARDS FOR SAFETY AND DURABILITY  Zinc finish on thick durable die-cut steel for rust and corrosion resistance