Cabinet Door Hinges Vertical Swing Lift Up Stay Pneumatic Arm Kitchen Mechanism Hinges Durable Silent Silver Material Iron, Zinc Brand This device allows the doors to open in parallel silently, and is smooth and stable Finish Type Nickel Mounting Type Door Mount Number of Pieces 1 Weight Limit 6 Kilograms Made of zinc ally in satin nickel, non-rusting, non-corrosive and durable. For top lift hardware support, suitable for folding beds, folding sofas, folding sofas, lifting door cabinet doors, swing top table, etc. Installation Requirements: Door weight: within 6 kg/12lb; Width: 340mm-380mm; Height: Not Greater than 375mm Invisible design, simple and practical. Each package includes a left spring hinge and a right spring hinge. This device allows the doors to open in parallel silently, and is smooth and stable Load-bearing Capacity(Withstand Door): ? 4-6KG/12lb Width: 34-38cm (Stretchable, and 34-38cm long doors are suitable) Height: Min 37.5cm Depth: Min 22cm/8.66in Specification: Material: zinc alloy + iron Surface treatment: nickel plating Product Name: Pneumatic vertical upturn support Product features: durable, silent mute, etc. Product application: upturned door and aluminum frame door of cabinet Installation Steps:1. Fit the pneumatic lift on the arm. 2. Fix the arm to the side of the cabinet. 3. Measure the center of the bracket hole. 4. Secure the bracket to the rear side of the door. 5. Fixed rod. 6. Adjust the bracket screws to get the perfect door closure.