This Panel Mount 10K Dual Linear 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 linear-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.
Unlike many of our other potentiometers, this one is not breadboard-friendly. The pins are about 0.15" apart, and the rows are close together so you'd short the switch to the potentiometer. Thus, we suggest soldering wires to the pins as necessary, or designing a custom PCB.
Once you're done prototyping, you can drill a hole into your project box and mount the potentiometer using the included washer and hex nut. We've got plenty of matching T18-splined knobs that you can pair up