100 percent brand new and high qualityName: Window SupportMaterial: stainless steelSize: (Approx) 8/10/12/14inchUses: Mainly used for aluminum alloy windows,Greenhouse air flow window Products include:1x Window SupportTips:If you do not understand, please see our video installation, or contact us.Please ensure your window size is acceptable for set up earlier than purchase, as proven below.