How to Adjust Door Speed on the New 70 Series Door Closer

Adjustable : The closing (locking) speed of this door closer can be adjusted according to your actual needs, and it can meet your various needs. You will love it! Strong & Sturdy : This door closer is made of high-quality materials, wear-resistant, corrosion-resistant, non-toxic and tasteless, can be opened and closed at least times, is a very practical tool! Easy To Install