The GEZE Door Closer With Adjustable Closing Speed Chrome 177mm L is suitable for doors with up to 1100 mm leaf width. The product can be used for right and left swing doors without conversion. Manufactured from steel, which provides strength and hardness to the product, and thereby providing corrosion resistance. This door closer is manufactured in accordance with BS EN 1154, which ensures the good performance and quality of the product. It is designed with adjustable hydraulic latching action, which controls the sweep speed and the latch speed of the door. CE Marked. Fire tested to EN 1634-1. Adjustable closing speed which automatically adjust the speed of the door.