Knot nightener for tightening line systems.

It is a set of large size and small size.

Small size can be stored by opening the lid at the top of the large size body.
Both large and small are equipped with line stoppers sandwiched between O-rings.
Can be used not only for tightening but also as a line breaker.
* The body is made of carbon, and the bracket is made of aluminum.*Made in JAPAN

=SPEC==
Large size
Length : 174mm
Diameter : 25mm

Small size
Length : 147mm
Diameter : 21mm

* If the rubber tube on the surface of the carbon part of the main unit deteriorates, it can be repaired.