The Behringer TD-3 Smiley Knob is a unique and fun accessory that adds a touch of personality to your musical setup. This knob is designed specifically for the TD-3 and TD-3 MO (although I believe it will fit the RD-8 too) Volume/Rate pots and the two selection pots. diameter is 21mm and height is 15.5mm. Available here in classic yellow and black but message for custom colours. See my other listings for full sets of replacement knobs for the TD-3 in various colours and sets.
