String biter

The small hole at the bottom should be used to encore the clip to the destination part of the tension,
The string should be passed through the teeth part from the broad side of the clip (not the handle part).
You pull the string out through the teeth by just pulling the string.
Release by pressing the handle and gently easing the string off the teeth.

This is a digital prototype.
If (like my other projects) you choose to resize it to fit your string and print it, then (like my other projects) do write about it.

Thank you all for your help and support.