Hold open in the opening range of 90~100: the automatic door closer with locking function. If the door opening area stays 90-100, this door closer with damper can leave the door open at any angle your force stops. To meet your needs, you don"t need any external force or additional door stopper to keep the door open. And the opening can be easily loosened by simply pulling the 0~90 door part. Buffer function and self-closing: the door opening area remains 0~90 and 100~180, the door closer automatically and silently closes the inner and outer door. You don"t have to shout "close the door". Compared with the clip door closer, the door closer automatically reduces the closing speed when the door between 0 and 15 to make the door close slowly and the wall will not be damaged. Closing the door will no longer be tedious. Small size, strong function: This hinged door closer integrates automatic door closing, damping, holding function and hinges. Replace the original hinges with this invisible door closer to remove door, floor and wall stops, dampers, interior door closers and door clips. Restores the original beauty of doors, floors and walls and reduces their burden. A family-friendly partner: compared to conventional door closers, the has lower pressure on the door opening, so there are no difficulties in opening the door. It will be a friendly partner for the elderly and children, and it will be better suited for family use. The hydraulic door closer is hidden in the hinge, so it does not harm the elderly, children. And it won"t damage doors, walls, floors. Widely Used: This exterior door closer is made of high quality 304 stainless steel and filled with hydraulic oil. Suitable for door weight 30-40kg. This exterior door closer can work normally in extreme environments. This spring door closer is a non-manual door closer. It can therefore be used for doors on the left and on the right. Very suitable for swing doors, interior doors, exterior doors, garden doors, front door, mosquito net, glass doors, bedroom or balcony doors. Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it