1、PROFESSIONAL DESIGN: Automatic door closer is designed for low to medium traffic areas and is ideal for all types of residential doors. It can close your door automatically and silently. It will improve your quality of life. 2、SAFE AND RELIABLE: Automatic door closer is designed to close consistently and safely. Ensures the door closes smoothly while preventing slamming. Safe and seamless, you won't let the door hit you on the way out. 3、FULLY ADJUSTABLE: The automatic door closer allows you to set the opening force and closing speed of the door by means of two independent valves that regulate the sweeping movement of the door arm and the closing lock mechanism. 4、PREMIUM MATERIAL: The adjustable spring door closer is made of premium cast aluminum and cold rolled steel, which is sturdy and lasting, rust and wear resistance, and has a long service life. 5、WIDE RANGE OF APPLICATION: Door closer is widely used in fireproof, fire exit door, thickened stainless steel doors and so on. Applicable door weight Approx. 75kg/165.3lb, applicable door width Approx. 130cm/51.2in. Item Type: Automatic Hydraulic Door Closer Material: Cast Aluminum, Cold Rolled Steel Weight: Approx. 1559/55oz Positioning Models: Open the Door Greater Than 90 Degrees, Door Automatically to 90 Degrees; Open the Door Less Than 90 Degrees, Door Automatically Closed. Applicable Door Weight: Approx. 75kg/165.3lb Applicable Door Width: Approx. 130cm/51.2in Function: Double Speed Adjustment Scope of Application: for Fireproof, Fire Exit Door, Thickened Stainless Steel Door, Etc 1 x Door Closer Body 1 x Connecting Rod 13 x Screws 1 x Accessories Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store