Welcome to Defender Canada! 
Scotty Round Rail Mount Item # 1015143
Description
Provides versatile mounting without having to drill more holes in your boat. Perfect for boats with limited mounting surfaces.
Features:
- Works with all Scotty post mount rod holders and can be positioned anywhere on your rail
- Includes stainless steel fasteners that hold this tough mount securely in place
- 1 1/4" Round Rail Mount can also be converted to a square rail