Use barrel lock to loosen/tighten to desired size and fasten securing clip to shirt.
To add tippet to Tippet Holder: unclip the Tippet Holder from one of the S-biners securing the Tippet Holder, as well as one of the washers. Add tippet spools to the Tippet Holder, then return washers. Clip the Tippet Holder back in place.