The Rotating Crown Vise is a top quality professional fly tier's vise. The self closing jaws open by lever action for quick and easy hook changes and holds the hook securely. Accomodates hooks from size 4/0 down to 20 or smaller. Elegant finish with brass fittings. The angle of the jaws may be adjusted to suit your needs, and the jaws can be rotated to allow all sides of the fly to be viewed. C-Clamp attaches vise to the work surface.