Adjustable Turn 16mm Top 6mm Shaft Insert Dia Potentiometer Rotary Knobs Specification: Product Name Rotary Knob Material Plastic, Metal Color Black, Silver Tone Fit for Shaft Hole Dia. 6mm/ 15/64" Knob Inner Dia 12mm/ 0.5" Knob Top Diameter 16mm/0.6" Overall Size 20 x 12mm/ 0.8" x 0.5"(D*H) https://elecena.pl/product/16455876/potentiometer-rotary-knobs 2020-04-14 https://elecena.pl/product/16455876/potentiometer-rotary-knobs 2020-09-01 https://elecena.pl/product/16455876/potentiometer-rotary-knobs 2021-03-02 https://elecena.pl/product/16455876/potentiometer-rotary-knobs 2025-07-09