【Hydraulic Strut Material: 】Composed of plastic + iron + copper, electroplated and polished, with smooth and rust-proof surface. ABS gas shaft is made of excellent material, high strength and durable craftsmanship. Package includes 2 packs of lift support hinges and complete set of accessories, directly installable. Please measure the Width/Height of the cabinet before purchasing. 【Gas pressure cylinder and connecting rod: 】Stronger load capacity and more flexible switching. Wear-resistant ABS with an easy-to-open catch spring mechanism. Improved durability when opening smoothly upwards. 【INSTALLATION STABILITY: 】Gas strut kit's metal fasteners allow for a larger contact area between the cabinet and the hinge, and the three-point positioning makes for a more stable installation. The mounting position can be adjusted as needed (see paper manual ). 【Scope of application:】Hydraulic support, automatic expansion. Suitable for drawers, kitchen cabinet doors, cabinets, etc., most suitable for cabinets. 【Gas pressure:】Each gas strut has 120 N. Please select the required Nm according to the table. if you have questions about the selection of gas strut Nm, contact us directly., Manufacturer: ZFYQ