Cliff FC72621 CS10R Slider Knob Soft Touch Black With White Marker...

Cliff-CS10-Black-Soft-Touch-Slider-Knob-with-Marker-Line-Cliff-FC72621-p-A-black-soft-touch-slider-control-knob-with-a-white-marker-line-p-Cliff-FC72621-CS10R-Slider-Knob-Soft-Touch-Black-With-White-Marker-Line

Price: 0.18 from Rapid Online Rapid Electronics Ltd.