Homeowners, if you need to replace a worn-out lock or upgrade your door security, this Jeriup Euro profile cylinder is a solid choice. Measuring 65mm with that standard 27.5/10/27.5 configuration, this single-open cylinder works with knobs on one side while the other remains fixed. Made from high-quality copper (solid brass), it resists rust and corrosion much better than cheaper materials. The 7-pin mechanism includes anti-theft pins for added security, giving you peace of mind about your home's protection. You get three Yale keys included, each with a substantial 2.2mm thickness that feels durable in your hand. Installation is straightforward - it fits most wooden and aluminum doors with standard Euro profile cuts. Perfect for front doors, back doors, or any entry point where you want reliable security without complicated electronics. The precision engineering means smooth operation every time you use your key. Whether you're replacing a damaged cylinder or just want to rekey your doors, this quality lock cylinder delivers professional-grade security at a very reasonable price. Much better than those flimsy hardware store options that wear out quickly.