Metal Dome Tone Guitar Bass Control Knob Wrench for Fender Tele Product Name : Control Knobs;Fit for : Guitar Bass Inner Dia : 5.5mm/0.22";Total Size(Approx) : 18 x 18mm/0.7" x 0.7"(D*H) Materials : Metal;Main Color : Silver Tone Net Weight : 21g Package Content : 1 x Control Knobs1 x Hex Spanner