No more unsightly rust on your fishing rod holders ever again. These fishing rod holders are forged from marine-grade 304 stainless steel. The clamp-on brackets are made of 316 marine-grade steel for added protection for the moving parts. The kit includes rubber inserts that fit into each rod holder to protect the fishing rod handles. The two holders are adjustable to 32 different angles and can be mounted vertically or horizontally to 7/8-inch or 1-inch rails.