The FK503 Locinox Sixty Slim Line Insert Lock is a high-quality lock designed for gates with a 40mm backset. This lock is designed to provide reliable and secure locking for your gate, ensuring the safety and security of your property. The slim-line design adds a sleek and modern look to your gate, enhancing its overall appearance. The lock is made from durable materials to withstand outdoor conditions and provide long-lasting performance. This product includes the lock only, allowing you to customize your gate installation according to your specific requirements. With its easy installation process and user-friendly operation, the FK503 Locinox Sixty Slim Line Insert Lock is a great choice for enhancing the security and functionality of your gate.