DW's 9000X Innerlock Internal Cable System allows for repeatable height positioning so stands can be fully collapsed for transport—speeding up setup and teardown. This innovative feature comes with both 1" and 3/4" plugs to accommodate tubes across most 9000X stands. Note: Available on 9000X hardware models only., Internal memory lock, Fully collapsible, Universal 9000X tube integration, Fits into 1" or ¾" tubes,