It's simple to use:
Form a loop in your leader using the tool
Slide this tubing, which you slid onto the tool before starting, over the end of the loop
The loop is now ready
Insert the required length of indicator yarn into the loop
Push the tubing over the indicator yarn
The strike indicator is ready to use and can be positioned on your leader as needed, by simply sliding it into position. The indicator can be removed from your leader in the reverse order, without the tool, and used again.
Tool Length: 6,5 cm