The Self-Gripping Captain's Hook uses a premium tightening design that requires no hand tightening. Simply push the top of the hook down towards the body to loosen and let go to automatically tighten. The elegant finishes that we carry will give your display a unique look that will make it stand out like no other! Thanks to the easy installation process you can have an exhibit displayed anywhere you would like in no time! If you look below you will notice technical descriptions about this particular hook.