3 Pack Heavy Duty 3D Adjustable Invisible Hydraulic Hinges, 170 Degree Swing Left&Right Mortise Mount Concealed Cross Hinge Automatic Door Closing Hinge, 80KG/176LB, Right, Black

We have been committed to excellent performance on doors & windows hardware, etc.We launch 3-5 self-designed new products every month, which has been lasting for 23 years.Not only focus on appearance, but pay more attention on product quality, performance, and comfortability.We have brought countless wonderful products into thousands of families.SAILANKA welcomes all forms of cooperation.

• This invisible hydraulic door hinge is made of strong, durable, high quality materials with an electroplated finish that protects the metal from corrosion
• Different opening angles have different automatic closing speeds. For opening angles greater than 80 degrees, the door can stay in any position. Less than 80 degrees, the door closes automatically at an even speed. Different speeds for different zones, the closing speed gradually slows down, and the door closes evenly and softly with almost no sound
• This new hydraulic hinge offers significant advantages over conventional hydraulic hinges. There is no need to install an additional mechanism on the outside of the door. The grooves on the door are shallow and easy to cut with minimal damage to the door. After installation, the hinge can be adjusted again according to the position of the door for the simplest and perfect installation
• This invisible hydraulic hinge is perfect for invisible doors, allowing your door to blend in with the wall. Suitable for home, storage room, cellars, hotel, office, club, secret room, etc. It can meet the needs of a variety of scenes.
• Ultra-long service life, tested to open and close up to 500,000 times in normal use