Sturdy nylon carabiner with double eyelet that rotates 360 °. Ideal for connecting two lines, even different ones, and avoiding the classic kinks.
 
It is not cluttered, it is light and does not lead to sinking the line.
 
It allows you to always have the line stretched out in a linear way without it rolling up on itself.
 
Ideal for transporting objects that are twisted together to the buoy.