[Fits for]: Gooseneck hitch kit Fit perfectly for / / f-450 with factory installed Part Number rail system or aftermarket rails(Part Number:19311)(#30126, #30852 & #30868) [Features]: Easy installation; Direct replacement and Perfect fit; Each part is manufactured to Part Number specifications and precision-engineered to be a direct replacement for factory part. The underbed gooseneck hitch kit with 3000lb capacity is made of high strength materials for excellent stability and durability to withstand long hours of hauling heavy items. [Function]: Lever inside ball activates ball bearing locking system Lift and turn lever to unlock and remove ball. Tips:The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Colour:Silver Material:Metal Package Contents: 1 * Gooseneck ball Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.