Teenage Engineering OP-1 Bender Orange
Pitch Bend / LFO Bend kit, including rubber band for elasticity. Orange plastic. Bender mounts on the orange knob and comes with a rubberband that is attached around the blue knob for elasticity. By selecting the Bender. LFO in the LFO browser you may bend any parameter you like. Everything from pitch to filter or syntesizer parameters.