【High-quality materials and precise workmanship】The universal cartridge cover wrench is made of high-quality 304 stainless steel, with smooth and rounded edges and burr-free surfaces, exquisite workmanship, scratch-resistant, corrosion-resistant and rust-proof, with long-lasting durability and stability, and has a compact size of 64 mm in length, 42 mm in width and 4 mm in height. 【Compatibility and list of suitable faucets】Compatible with Blanco 139219, compatible with Actis, Alta, Arcos, Master, Talos, Culina, Filo, Fontas, Kantos, Finess, Linee, Linus, Zenos, Zirus, etc. Compatibility and list of matching accessories in our gallery, where you can check if your faucet is compatible with our universal wrench. If you are not sure, please feel free to contact us. 【Usage Steps】First disassemble the faucet head; Then, with the help of AAB, you can open the cartridge cover ring underneath; Finally, after successfully replacing the faucet tube or gasket, tighten the cover ring with the cartridge cover ring wrench. 【Ergonomic Design】The cartridge wrench design meets ergonomic design principles, it is easy to hold and use, and is labor-saving and efficient in use. to make it easier for you to open and close the top cover ring of your sink faucet. Please note: not a universal style. Please compare all sizes. 【Universal Cartridge Cover Wrench】Compatible with Blanco cartridge covers. Keyed identical to key 139219. Our sink faucet cartridge wrench allows you to easily remove the faucet head and open the top cover ring for easy access to the cartridge for maintenance or repair work.