Features Hofner-style teacup knobs made by MONTREUX, with side screws. Specifications ■ Hofner-style knobs ■ Set of 2 ■ Side screw type (with set screw) ※ Not compatible with 6.35mm diameter solid shaft pots. ※ Use a 1.5mm wrench for adjustment. Hofner-type volume knob (mm size) Φ6mm hole The gold surface has some dullness due to aging, but they have been used very little. Please see the images. Images 7 and 8 show the knobs installed; the Hofner bass body is not included. ※ Please confirm availability before purchasing, as these are also listed on other sites.