1.Material:SS201,SS301,SS304 2.Spec.:12",14",16",18",24",36" 3.Bar thickness:2.0,2.5,3.0(mm) 4.Square slot:width 22mm Innovate from traditional window styas.High-head design makes the windows anti-drop ,double safety and strength 22mm square slot ,Non-handed ,Heavy-duty friction stays ,Suitable for side-hung outward opening casement PVC steel window or aluminium window Composite steel/PVC slider ...