The R-500 Spyderlok rail rod holder by Millennium Marine will take your fishing to the next level. With 360-degree rotating arms and the locking rod holder. This rig will be your new favorite holder while fishing from your pontoon boat or pier. Each rod holder on the R-500 Spyderlok features our patented Spyderlok technology - the teeth lock in place, securing your position tightly. With a simple twist, you can move the arms with ease. The R-500 Spyderlok is packed with features, including, all aluminum anodized construction, smooth and easy pole angle adjustment, tight secure locking angles, and the rugged design is built to handle whatever you throw at it.