Designed for the 3x360R and 3x360G three plane lasers, the PLS3x360CB is designed for easy attachment to ceiling t-grids for suspended ceiling/acoustic ceiling installation. In addition to a ceiling grid clamp, the PLS 3x360CB can be attached by a screw (keyhole hanging attachment) or by zip-tie. Use the PLS 3x360HC vertical fine adjust knob to quickly and easily adjust the horizontal laser line of your PLS line laser.