Set of domed control knobs (2 large & 1 small) and 1 thumb rest made from Japanese flowering quince wood. Immediate purchase is available. Not sold separately. Would look great on a Jazz Bass, etc. Securely fixed with set screws, allowing for fine adjustment of the gap with the body. The thumb rest has temporary adhesive on the back, so please find your preferred position and permanently attach it. (Double-sided tape for permanent attachment is not included.) - Type: Domed knob, shaft diameter 6.0mm Thumb rest (H12.1mm) - Size L: R17.8mm H17mm - Size S: R15.8mm H17mm - Finish: Polished with walnut oil - Included: Hex wrench Due to being handmade, there may be slight variations in dimensions and finish. Please understand. Thank you for viewing.