Knob Button Guitar Amplifier AMP Volume Tone Control Knob Skirted Aluminum For FD Parts Description: 100% brand new and high quality Durable and portable to use. Fits 6mm diameter pots. Material: Plastic+aluminum(No Set Screw) Size:1.1x2cm/0.43x0.79 (approx) Color:Black with Silver Top Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Guitar Amp Knob(other accessories demo in the picture is not included.)