This is the Schneider Electric XB2BW33B1C, a solid little flush-mount push button switch. It's got a green mushroom head that sits nice and flat on your panel. Inside, it's a 1 normally open (1NO) contact, so it's perfect for start circuits or any momentary control. Runs on 24V, and it's self-resetting—meaning it pops back out after you press it. Part of the ZB2-BWB.C series, so it's compatible with a bunch of Schneider bases and accessories. Build quality is what you'd expect from Schneider: reliable, good for industrial panels, machine controls, or automation setups. Comes with a 180-day warranty. Just make sure your voltage and load match up. A straightforward, no-fuss switch if you need a durable green momentary button.