Our DR Uni-Mount Plate is design to be used with either Cannon or Scotty downrigger swivel bases, and allows for mounting and securing our RMFG-ASRH Adjustable/Swivel Rod Holders. A serious upgrade to the original set-up, it locates the axis of your rod holder in the most optimum position in relation to your downrigger. This model is designed to facilitate a single rod holder. Ships complete with mounting hardware/fastners. Rod holders NOT included.