This 1.5 in. adjustable-height suspension adapter allows the height of the display or projector to be adjusted within a range of 24 - 46 in. (60.96-116.84cm) in 1.25 in. (3.18cm) increments.Features- Can be installed on a wood stud or concrete ceiling structure- Multiple attachment points adapt to a single stud or a 4.5 in. bolt pattern- Works with both flat-panel mounts and projector mounts- Adapts to 1.5 in. NPT- Adjusts from 24 - 46 in. (610-1168mm) in 1.25 in. increments