Features: 1) Hinges: 4"-28"2) For aluminum window and door3) Material: stainless steel, aluminum alloy, Zamak4) Processing: stamping, pressing, or die casting5) High quality with competitive price 6) Easy to install7) Good function 8) Different specifications, materials, finishes available9) Samples availableInner packing:Poly bag / boxOuter packing: 100pcs/ctn