【Wide Application】The connector is thick and durable, hydraulic support, automatic expansion. Hinges is suitable for doors, household cabinets, to easily open the doors of kitchen cabinets and lift the door panels of cabinets. 【Premium Material】Gas stay hinge is made of ABS clamp + zinc alloy plus iron, comprehensive performance, high impact resistance, no rust, no corrosive and durable. The contact area of the cabinet body is larger, the three-point position, the installation is stronger. 【Installation Steps】1. Install the air lift on the arm. 2. Attach 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. 【Optional Resistance Pressure】 40N / 4kg, 60N / 6kg, 80N / 8kg, 100N / 10kg, 120N / 12kg, 150N / 15kg Total length: 26.5 cm (approx.) After compression: 17 cm (approx.) Please refer to the length/width of the cabinet door in the table before purchasing. 【Package include】1 x gas hinge and 5 x screws. If you can't find the screw, please contact us to forward it. If you have any other questions, please feel to contact us via email., Manufacturer: Zerodis