Opening easily and moving smoothly capable to pass durable test of opening 50,000 times Width: 45mm, Length: 10'-36'(250-900mm)Thickness: 1.0X1.0X1.2mmMaterial:cold-rolled steelLoading capacity: 30KG (18")Finish: blue-zinc plated, black, color-zinc platedSide mounted, thickness 12.7+/00.3mm double-extension slide