Cheap And Discounts 5Pairs = 10PCS RV09 Vertical Adjustable Resistor 3Pin Seal Potentiometer 1K ~ 500K Ohm For Arduino With Knob Yellow Cap Wholesale. Buy Directly From Merchant Quality components supermarket Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.