CRUST handle lock set provides the best quality locks door thickness - 28 mm to 40 mm. Mortise door handle. Key operation from both sides. Our products are made of stainless steel 304 grade making it perfect for life lifelong without worrying about corrosion, rust, or any other factor which leads to depreciation of the look of the handle lock set. These products are manufactured in agreement with set industry quality norms using high-grade raw materials and advanced technology. To manufacture these products, we source supreme quality raw materials from dependable merchants of the market. Before buying, any products see the below features, which are only given by crust and these features make us unique. Beautiful design to make product royal and long life, anti-rust, anti-junk material, and design for a long time, easy to use and install the product. This lock adapts to all doors. Advanced production technology with precision machining and tools. Standard and strict production requirements. Solid four stainless steel round bullets in the lock body assured this product a good item worth purchasing, simple handle design provides a comfortable grip. It will be installed in the front and back of the door. Brings you the Italian standard locks by offering you the most beautiful hardware products made by new technology. Blue space products are made of stainless steel 304 grade which gives lifetime durability to the product.