This item is household cabinet and cabinet door gas support, which adopts hydraulic system and durable metal material with satin silver end and increases its anti-corrosion performance and support capacity. Ideal for supporting the lid to keep it open. The support opens the lid up to a maximum angle of 90 degrees. Suitable for kitchen, bedroom, living room, office and office. Make your life easier and faster. Directions for use: 1. First install the thick body part of the gas spring on the cabinet door to be supported. 2. Leave the cabinet door open at an angle of 90 degrees so that the air strip can expand freely. 3. Finally, the screw bearing section of the pneumatic rod is attached to the cabinet door frame. Specifications: Material: ABS clip + zinc alloy + iron Colour: silver grey Total length: approx. 26.5 cm After compression:17cm/6.67" (Approx.) Package weight: 400 g Opening angle: 80, 90 or 100 degrees (depending on installation position) Mounting hole spacing: 32mm Pressure: 120N Package includes: 4 x gas spring lifters. 8 x metal mounting discs. 20 x screws