Foul Pole Ground Sleeves are sold individually and are required.334012CXX 12' Foul Poles requires the 00402000 Ground Sleeve 334016CXX 16' Foul Poles requires the F39903 Ground Sleeve.333024CXX 24' Foul Poles requires the F39902 Ground Sleeve.334032CXX 32' and 334040CXX 40' Foul Pole require the F39901 Ground Sleeve.