Potentiometer kits range in resistance from 10 ohms to 2 Mega ohms with a resistive material being carbon, cermet, conductive plastic, Hybritron, and wirewound in a linear or logarithmic taper. A pot (potentiometer) is a three-terminal resistor with a rotating or sliding contact that forms an adjustable voltage divider. The number of turns range from 1 to 25 with a power rating of 0.06W (1/10W) to 2W.