1. Premium Quality Materials: The cartridges are crafted from top-notch copper and ceramic, guaranteeing exceptional durability and a long lifespan. This combination of materials not only provides strength but also ensures resistance to corrosion and wear, making them a reliable choice for your plumbing needs.2. Exact Dimensions: Measuring precisely 42*17*8.2mm, these cartridges are engineered with utmost precision to fit 4-inch angle valves flawlessly. The accurate sizing ensures a tight seal and proper functioning, preventing leaks and ensuring efficient water flow.3. Versatile Functionality: Ideal for a wide range of plumbing applications, these cartridges offer reliable performance in different settings. Whether it's for residential or commercial use, they can handle various water pressures and temperatures, providing consistent and dependable functionality.4. Multifunctional Spanner Included: Along with the two cartridges, a handy multifunctional spanner is provided. This spanner makes installation and maintenance a breeze, allowing you to easily tighten or loosen the valves without the need for additional tools. It's a convenient addition that saves time and effort.5. Outstanding Value: This combination of two high-quality copper and ceramic cartridges along with a multifunctional spanner offers exceptional value. It provides a cost-effective solution for your plumbing requirements, ensuring long-term performance and reliability without breaking the bank. You get the functionality and durability you need at an affordable price.