Size: 160*100cm (Min); 600*300cm(Max) Torsion Bar: 137.8*107.8mm(cassette) Roller: diameter 69.8mm, aluminum Front Bar: 55.2*42.2mm, aluminum Support Arms: 51*26mm (Min) 59*31mm (Max) Fabric: 280 g/m^2 Polyester w/pu coating For further more information,please feel free to let me know.