1)copper ball post cap 2)71x71 , 91x91 3) material: copper 4)type: ball and pyramid copper ball post cappure copperdimension as below:   

Post caps
Dinmension	Thickness	Type
71x71 mm	1.0/0.8mm	Pyramid
91x91 mm	1.0/0.8mm	Pyramid
101X101mm	1.0/0.8mm	Pyramid
71x71 mm	1.0/0.8mm	Ball
91x91 mm	1.0/0.8mm	Ball
101X101mm	1.0/0.8mm	Ball
Surface treatment: natural or  Hot dipped galvanzied zinc  only for mild steel
Material: 1> Strong mild steel
2> Stainless  steel
3> copper or yellow copper

   

copper ball post cap