REYSUN specializes in the design and production of trailer accessories including trailer ball mounts, pintle hooks, hitch extenders, rv bumper hitches, hitch adapters, and other hitch accessories. We have a team of professional and experienced technical personnel who can provide customers with high-quality and innovative products. REYSUN adjustable trailer hitch ball mounts assembled with dual ball attachment is highly versatile. The channel style shank also features multiple mounting holes for varying ball heights. You can adjust the hitch ball heights up to 8 1/2 inch drop or rise. The adjustable channel shank is also designed with 2 pin holes and are able to have 2 active length to avoid any interfere with the vehicle bumper. It is 11-5/8" and 13-1/8" length from the center of the hitch ball to the center of the pin hole. This adjustable drop hitch comes with a dual ball attachment. The 2-inch trailer ball is rated for capacity of 10,000 lbs., and the 2-5/16-inch trailer ball for 14,000 lbs. Package also come with 2 pieces of heavy duty hitch pin and 1 piece of trailer hitch lock