... top side stays 1,window stays 2,materail: ss201,ss301,ss304 3,size: 12",14",16",18",20" 4,competitive good 4-bar heavy duty top side stays FBX224 • 22mm square slot, non-handed, heavy-duty friction stays ... Specification of the hingeLength(inch)Slot Width(mm)Bar Width(mm)Bar Thickness(mm)Max Weight(kg)Opening ... necessary, welcome to contact us! 4-bar heavy duty top side stays FBX224(22mm suqare slot)