Reliable cylinder lock to improve home security across door types. - Comprehensive protection: burglary, drill, and shock protection guard entry points and reduce the risk of forced entry. - Anti-pick design: at least three antipick pins on each side make picking significantly harder for intruders. - Strong, durable construction: antisnap design plus shockproof, drill-resistant, and pick-resistant properties. - Wide compatibility: suitable for wood, metal, patio, and composite doors; designed to fit standard door configurations. - Easy installation and long-term use: compatible with common keying systems; robust build for extended service life. - Practical use scenarios: - Upgrade a front or back door in a family home to deter break-ins. - Secure rental properties where durability and key control matter. - Replace old cylinders on doors of mixed materials (wood, metal, and composite) during renovation.