Seachoice 89921 StarPort Accessory Rail Base, Fits 1-1/4" to 1-5/8" Round or Squ

Attaches to round (89920) or round and square (89921) rails to provide a quick and easy attachment point for any StarPort accessory.
 
Fully adjustable
Easily move the Rail Base to a different location on the rail
Includes adapters, rubber grips, self-adhesive grip tape and stainless-steel fasteners
Installs in minutes