Surface Mount Baseball Pole Features. Complete your baseball diamond with our premium line of baseball poles. Poles are constructed of heavy-duty galvanized steel and include an 18-wide steel mesh wing panel. The entire unit is galvanized and powder coated in optic yellow for maximum durability and protection in outdoor environments. Poles are available in 3.5 and 5.9/16 OD and 12, 15, 20, and 30 heights to meet your organization's needs and budget requirements. Pole heights shown below are measured from ground level to the top of the buried poles. Poles will be longer for concrete pad mounting. Ground sleeves are an additional cost for buried P models. Ground sleeves must be ordered with poles to ensure proper factory modification. Specifications. Pole OD 3.5. Pole Height 12. Wing Panel Size: 4"L x 18"W. Weight: 190 pounds