The rod holder is made of high quality stainless steel(AISI 316) and could be mount into the deck. It possess a plate which could be stick anywhere on board through four screws, while the rod holder itself(the pipe) could be stick and remove all the time.The top of the rod holder is made out of rubber so that the rod is not turning around. measurements: length of pipe:220mm diameter of the pipe :50mm width of the plate: 91mm length of the plate:91mm