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. Quality Zinc alloy Automatic Door closer?Non-handed design Adjustable Tension?Adjustable screws for slow or fast closing, Choose your return close speed to suit the environment in which the closer is placed. Size: approx.6.5*4.9*1.2 inchs, Suitable for door weight for 60kg, door width 1000mm?Universal design, right or left swing door?Ideal for home, office, hotel room doors. 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. please measure you doors before ordering?Suitable for door weight for 60kg, 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.