1.Material: aluminum,Stainless steel, 2.Guarantee quanlity 3.Pass 78 hours salt spray test 4.20 years experience manufactry DetailsA.Production Name: Aluminum standoff,glass holder,glass standoff with high qualityB.Material: Aluminum, Stainless steelC.Finishing:Chrome,SatinD.Size: various sizeE.Structure: hollow / solidF.Acid salt spry test:48 hoursG.: Package: Normal export carton