As a manufacturer ,we specilized in manufacturing electronic door locks ,like hotel locks,digital locks,sauna locks, which are widely used in hotel,office building ,school,department and home. The locks are made of high-quality zinc alloy material,solid lockbody constructure to ensure security to provide you a modern and security life !Live with modern ,live with Lensam , if you are interested in our products, welcome to contact us for more information ,or leave your message here ,we will get back to you as soon as we got your inquiry .Thank you !Nancy Guo