Link Neck Tech Sport
The Neck Teck Sport chain can easily be shortened or lengthened.
You can change the Left as following :
The Neck Tech chain is placed on a flat surface (see picture 1).
A screwdriver can be inserted between the space on the back of a link. In this way the link comes loose and you can remove it or add another in between (see picture 2 and 3).
Finally everything can be properly fixed by pushing everything back in his place by using a pincers (see picture 4).
These Left which you can obtain here are made in stainless steel . They have pins on the ends and so they have the same effect like a pinch collar.