Key Features [Excellent Material] Double cylinder lock with stainless steel bolts. Latch bolt and deadbolt: made of stainless steel. [Quality] High quality and extremely durable door lock. 【Easy Installation】Easy installation in minutes with just a screwdriver. No extra drill needed. No locksmith needed. 【Undoubted Safety】Our lock design is unique, ensuring safety without a doubt. Forend plate and strike plate: made of stainless steel.