Solid and large foot pedal that has a feature to be able to have it constant or just when you press. However, I cant seem to figure out how to switch between the two modes. It seems to be constant when I dont want it to be and not constant when I want it to be. Is it a double tap? A long press? I tossed the direction so am not sure as I have tried it all and am just not sure if this is defective, or if its just my brain that is defective. I will adjust my review accordingly once I figure it out