Free to attach to the boat!Crank screw fixing is possible when there is no post hole on the boat surface.With soft rubber, it is hard to scratch the rod.Prevents rod slipping when moving points, feeding or removing needles.Maximum installation width: up to about 10 cm.If the ship's width is narrow, please use a splin.The rod may rotate in strong wind.Please use it after confirming that it can be fixed on the ship's side.