High Quality New 4 Pieces Guitar/Bass Control Knobs Black This is a set of 4 new knobs from the FLEOR brand. - These knobs use a very high-quality metal body with beautiful plating and plastic internal materials. The knobs are designed without screw holes (set screw type knobs can loosen if the construction is not good). - Fits most electric guitars/basses with 6mm split shaft pots (these are the so-called metric size). - Size: Diameter approx. 17.8mm, Height 18.5mm Hollow shaft diameter: approx. 6mm The product will be delivered with cushioning material, as it is in the original packaging.