The telescopic hangers feature a very robust mounting clamp for attachment to a lighting grid. The clamp has been slightly offset, allowing the extension or retraction tube to slide upwards when there is sufficient space between the grid and ceiling. It is therefore possible for a simple 3-foot extension hanger to go from a few inches below the grid to a full 3-foot extension.nnThe Matthews telescopic hangers are available in single-stage and two-stage versions. All terminate in a 1/2"-13 female thread to allow attachment of multiple suspension accessories listed below.nn- An XTA head can be added for even more versatility, along with the articulated arm and a flag as the top element, allowing quick and versatile lighting control without requiring additional rigging equipment.