LAPO mortise door lock set for main door is engineered using durable zinc material ensuring strong construction and dependable long-term performance. The handle assembly is tested for more than 300,000 cycles delivering consistent and reliable functionality over extended usage. It supports 30–50mm door thickness with compatibility for both left and right opening installations. The internal mechanism ensures refined movement providing a smooth and silent locking experience. Quality checked before dispatch, each unit undergoes strict inspection to maintain finish accuracy and dependable functionality. Comes with complete installation components, 3 computerized brass keys, and fast customer support backed by 3 years warranty.