Material: stainless steel, nice and heavy and made well. It comes with a decent tee handled allen wrench for adjustments. The rod holders can be used for outrigger and pole. They hold the rods excellent and we never worry about losing a rod with these holders. Vinyl liner: Vinyl liner (protect the rod) has 1.74 ID. 1x Left rod holder, 1x Right rod holder, 1x Allen wrench.