Pitchers throwing their curveballs with the arm slot at an angle will throw a curveball that breaks down and toward the pitcher's off-hand. In the most extreme cases, the curve will break very wide laterally. Because the slider and the curveball share nearly the same grip and have the same unique throwing motions, this curveball breaks much like a slider, and is colloquially termed a "slurve". The axis of rotation on a slurve will still be more or less perpendicular to the flight path of the ball; the latter however will not be parallel to the ground. With some pitchers, the difference between curveball and other pitches such as slider and slurve may be difficult to detect or even describe. A less common term for this type of curveball is a 1–7 (outdrop,outcurve, dropping roundhouse) or 2–8 (sweeping roundhouse curveball).