The optional semi-permanent ground sleeve allows the removal of 5-9/16" gooseneck style goal post on multi-purpose fields. This is the only goal post sleeve in the industry that allows accurate adjustment of the crossbar height to official 10'. The hot dip galvanized heavy-wall steel base insures stability and safety. This sleeve provides 4" of total crossbar height adjustment and includes a built-in anti-rotation device. Aluminum cover to finish socket both when installed and removed.