Yale surface mounted door closers are particularly quick and easy to install, requiring a minimum amount of preparation on the door and frame. With UL or EC certificates, our door closers offer high quality with long durability, adjustable arm height, opening angle and closing speed, with various arm types that are flexible to fit to any situation under different type of mounting, closer position and space limitations. SPECIFICATIONS: Max Door Width : 800mm Max Door Weight : 45kg Operating Angle : 0-150 degree Durability : tested for 200,000 cycles Available color : Brown & Silver Aluminum