Spring Loaded Hydraulic HingesDurability: 5, 00, 000 Cycle Teste, Hold Open: 90with Adjustacble opening and closing speed, Can be used for double action doors also.Secure holding with glass.No oil Leakage: Imported seal material, delicate structure, process control on quality.Max Door Dimension: 1000 X 2200 Max Glass Thickness: 8 to 14mm, Max Door weight: 60 Kg .( Each Pair), Max Closing Force: 4-8Nm, Opening Angle: 100 Deg (Double Action), Working Temperature: 30-60 Des-C, Material: SS-304.Finish: Satin