Telescoping Hangers have a very substantial pipe clamp to attach to a lighting grid. The pipe clamp has been slightly offset to allow the riser or drop down tube to slide up when there is sufficient room between the grid and the ceiling. MSE Telescoping Hangers are available in double stage. All terminate in 1/2'-13 female thread to permit the attachment of several hanging accessories listed below. MSE Hangers are engineered with an internal mechanical stop which will prohibit the Riser from falling through should the lock off knob be inadvertently released. When properly used MSE Hangers are the safest in the business!