... 0,2.5, 3.0mm thickness. window hinge window friction stay1.Spec:8",10",14",16",18",20" to 28 ... contact me at any time Name:Friction stay, window hinge,friction hinge,window hardware,four bar hinge,hinge,window accessory,window ... ",20",22",24",26",28",30",32",34",36".Bar thickness:2.0mm,2.5mm,3.0mm.Opening angle ... a plastic,50pcs in a carton. heavy-duty friction hinge,window friction stay,bar hinge