Have a gooseneck hitch when you need it and full bed access when you aren't towing. Solid, machined 2 5/16" ball requires only a 4" dia. hole in truck bed. Under-bed mounting design bolts to existing holes in truck frame with no drilling or welding. Just remove the ball from the solid, one-piece machined receiver socket for a flat truck bed. Flexible latch pin handle is attached to a spring-loaded, 5/8" steel locking pin that goes completely through the ball for security. Durable powder coat finish resists rust and corrosion.