Sun umbrella,with steel ribs,steel pole,UV protection fabric,attractive outlook and durable,welcome to inquiry! Sun umbrella1) size: 32'' ,36",42",44'',48 ",52",54''and 60"available 2) fabric: oxford or pvc fabric or polyester optional 3) diameter of rib: 2.8mm,3.0mm,3.5mm,4mm,4.5mm,5.0mm4) pole: alumininum ,steel and iron shaft optional 5) pole diameter: 19/22mm,22/25mm,25/29mm,29/32mm6) rib: ...