Jf-02 3 Adjustable Knobs Ultimate Drive Overdrive Guitar Effect Pedal Different From The Normal Diode Clipping Circuit Material: Aluminum alloy Effect pedal size: Approx. 12 * 6.7 * 5.6cm / 4.7 * 2.6 * 2.2in Effect pedal weight: 301g / 10.6oz If you have any question, you can message to us.