For glass thickness 8 to 12mm Material: solid forged brass Maximum door weight: using two hinges for 45kg, Maximum door width: using two hinges for 800mm Technical details: Ensure the wall is strong enough Fits 10mm thickness of glass, 8mm is also suitable if washers are used Double action non-handed 90 degree, self-closing when the door stays at 30 degree approximately. Fasten all of the fixing scres Open-close time: 10, 000 times