This kit is for the "do it yourself-er" who wants to build their own davit system. The kit comes with everything you need, except for the boom and pulley. Included are the upper and lower brackets, back plates for brackets (to make the main mounts removable), and all stainless hardware. Comes with all stainless hardware Everything is included, except boom and pulley Holds 1A 1/2" diameter poles Make your own custom boom