The BT899-AD is a ceiling mounted, universal projector mount designed to mount projectors up to 25kg. The BT899-AD allows the projector to be lowered or raised in 25mm increments & securely fastened at the desired height. The BT899-AD has a maximum drop of 1143mm & features easy adjustment of tilt, yaw & roll plus optional micro-adjustment makes alignment of projections quick & simple.