The Shubb F1 Fine Tune Guitar Capo offers fine craftsmanship, high quality materials, and unique features. The innovative adjusting knob has six surfaces that are numbered for visual reference, allowing you to quickly set it to your ideal pressure. The knob is fixed in relationship to the frame, making it easier to use, and it keeps a low profile when stored behind the nut. Clean, precise fit of all components ensures the screw's fit will not become loose or sloppy. Inert silicone rubber neck pad, rubber bumpers, and neatly rounded edges are easy on your guitar’s neck.