twtade /wth118-2w 4k7 ohm dual gang potentiometer carbon linear variable turn rotary potentiometer + a03 knob twtade we also sell only high-quality products?"service first, quality first" principle. our company is the potentiometer, life is as high as 100 thousand , in china, a large number of customers use it wth118 adjustable resistance single-ring carbon film potentieter shaft diameter : 6mm standard axis length : 20mm outside diameter : 28mm resistance to fairness error : ± 10% mechanical angle : 300 ° temperature range : -10 ° c 10 85 ° c rotational life : 100000 rpm power : 2w