[Entry Door Handle] It's a lock for exterior doors or bedroom bathroom interior locking doors. It's made of high quality zinc alloy, the smooth light satin brass finish has an elegant look, works perfectly with all different colors of doors and lighting conditions. [𝐊𝐞𝐲𝐞𝐝 𝐀𝐥𝐢𝐤𝐞 Function]i.e. 𝟏 𝐤𝐞𝐲 𝐨𝐩𝐞𝐧𝐬 𝐚𝐥𝐥 𝐭𝐡𝐞 𝐝𝐨𝐨𝐫 𝐥𝐨𝐜𝐤𝐬 𝐢𝐧 𝐭𝐡𝐞 𝐩𝐚𝐜𝐤𝐚𝐠𝐞. It solves the problem of carrying a lot of keys on you daily and easily unlocking all your doors with 1 key. [Easy Installation] The package comes with all the accessories and instruction guide, you only need a screwdriver then finish it. It fits both right and left handed doors, work on most standard prepped doors. Adjustable Latch fits 60mm or 70mm door( 2 3/8 inch or 2 3/4 inch); Home door lock door thickness 1 3/8"(35mm) to 1 3/4"(44mm). [Sleek and Durable Design] Morden square shaped door lever with heavy duty constructions, made of high quality zinc alloy & stainless steel, light gold finished, door lock confirm with ANSI Grade 3 Security, Exceeds 200,000 cycle. Wear-resistant and anti-corrosion, well-engineered and built to last, due to their perfect design and high quality! [Brand Warranty Policy] We promise buyers a 30-day money-back guarantee and a 1-year product warranty, free return service, and free after-sales service and technical support. Leydebong creates a modern and stylish home for you