Smart lock, mechanical keypad door lock, no batteries, no power required

Smart mechanical combination door lock, keyless, battery-free MECHANICAL COMBINATION LOCK HANDLE COMBINATION LOCK BATTERY-FREE CODE Provide your office or other important spaces with an extra layer of protection and convenience with our mechanical combination lock. Our product is the perfect solution for those seeking a reliable way to secure their premises without the need for keys. Our mechanical combination lock offers reliable protection for your office or other spaces. Thanks to its robust construction and resistance to tampering, you can be sure that your property is safe and that access to it is controlled only by you. TECHNICAL SPECIFICATIONS: ? Product code: 27142 ? Made of high-quality materials ? Zinc alloy ? Changeable code ? Code length: 3 - 7 characters ? Assembly kit ? Simple assembly ? Hold-open function ? For right and left doors ? Suitable for door thicknesses: 25 mm to 65 mm THE KIT INCLUDES: ?? Brand new combination lock ?? Mounting kit ?? Original packaging