"ALUMINUM 3/4 IN. DIA BODY,REMOVABLE MALE ROD END BEARING EACH END,0.190 IN. DIA HOLE ONE END,0.250 IN. DIA HOLE OTHER END,C TO C EFFECTIVE LG IN EXTENDED POSITION 21.43 IN.,SECOND POSITION 18.24 IN.,FIRST POSITION 15.75 IN.,COLLAPSED POSITION 15.00 IN."