Automatic door closer is made of stainless steel and zinc alloy, adopt integrated molding process and multi-channel assembly process, make the whole product is durable and sturdy. Size: approx.6.3*3.78*0.78 inchs, Maximum door open angle of 175 degrees.Suitable for door weight for 20-40kg, door width 1000mmUniversal design, right or left swing doorIdeal for home, office, hotel room doors. Please measure you doors before orderingSuitable for door weight for 20-40kg, door width 1000mm. The closing strength of our door closer can be adjusted by using attached hex wrench, tighter or looser just based on your personal needs.This door closer is not suitable for heavy doors and large doors, it is for light doors. Quality stainless steel Automatic Door closerNon-handed design Adjustable TensionAdjustable screws for slow or fast closing, Choose your close speed to suit the environment in which the closer is placed. Includes mounting bolts and brackets shown in picture This door closer is to reduce the intensity when you close door to protect the doors from damaging and reduce the noise.