This Fishing Holder is made of mirror polished marine 316 stainless steel, sturdy construction, corrosion resistance. Black rod protective rubber protect the rod from being scratched. Gimbal pin and drain hole at bottom, allow water flow out. Removable 360 degree swivels change different direction. Tube up and down to 80 degrees. Rod holder length: 240mm? Mount bracket: 88.559mm? I. 44mm? Package: including 4 pieces. It will be a wise choice to choose us.