This Panel Mount 10K Dual Logarithmic Potentiometer w/ On-Off Switch is a two-in-one; you get a dual-ganged potentiometer and an on-off switch. For the potentiometer-half, you've got a dual standard log-taper 10Kohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off switch at the beginning of the shaft's rotation.