The 10-S Play Hard Excaliur Post Set is a 75mm square tennis net posts. Theydeliver superior scratch resistance and comprise of zinc (Zn), aluminium (Al), and magnesium (Mg) - providing maximum durability 2.5 times harder than galvanized steel. They are Square Posts with a round base - Providing the best look with the most efficient base. They are a maximum efficiency post set. The stainless steel fittings are a stand out feature and the bronze and stainless steel gears are longer wearing than brass. This leading design allows the mechanism to wind the net effortlessly into place. Perfect for any tennis court owners wanting their courts looking the best… Detailed Features: * 75mm square 8000 ULTRAGAL C350 posts with two-pack urethane coating – for long lasting shine. * Stainless steel internal winding components – for durability * Polished machined stainless steel fittings and bronze gears (harder wearing internal winder mechanism) – for beautiful aesthetics and precise net winding action. * Removable handle – for safety / security * No tools required – for installation of the net * No rust - Supplied with non-rusting sleeve collars * 10-year product warranty - for 100% peace of mind * 2 7/8" Round base insert to fit inside the most common 3" round Sleeves.