Behringer X32 Fader Knob / X32 Fader Cap (1 piece)
8 x Prof Electric Conductive Fader Button Metallised Chrome for Sliding Pot "Touch Sensitive" 18.5 mm T-Lever Fader Caps Fader Caps Sliding Button for Sliding Potentiometer Potentiometer : Amazon.de: Musical Instruments &
Chrome Fader Cap MK2 from Chroma Caps
6 x Professional Fader Button Black 4 mm Lever 6 - Sliding Button Fader Caps Fader Caps for Sliding Potentiometer Pot : Amazon.de: Musical Instruments & DJ