Fast and Easy Installation to Keep Things Lookin' Great! Designed to provide an easy and quick solution to mount a BenQ projector.Except CP220 & GP1Features: Tilt Angle: ±25° Length of The Hanger: 116 mm-578 mm Adjustable Length: 398 mm-578 mm (with increments of 22.5 mm) Projectors' Hanging Holes: 300 mm (L) x 250 mm (W) Vertical and Swing angle: ±10° Horizontal Angle: 360°