40/40 mm Cylinder with 4 Keys Internal Door Lock Anti-Pick Anti-Shock Lock Cylinder

DOUBLE CYLINDER FOR SECURITY - Our double cylinder offers two-way protection, the door can be locked or unlocked with a key, both from inside and outside. It is suitable for entrance doors requiring a higher level of security. Its compatible design fits most door types, including wood, metal and UPVC doors, and fits easily into existing systems. Multi-level anti-theft protection: thanks to special safety pins and anti-burglar and anti-drill technologies, this cylinder effectively resists all destruction attempts. Its robust materials provide additional protection against break-in, impact and extreme weather conditions. Quick installation without any special knowledge: the cylinder comes with all necessary components (screws, keys), so you can replace the old lock in just a few minutes. Simply remove the old cylinder, install the new one and fix it using the screws provided. DURABILITY & CONSTRUCTIVE OPERATION - materials and precision workmanship ensure a service life of over 200,000 locking cycles. The key rotates smoothly, does not crash and is reliable in everyday life. CONVENIENT MULTI-KEY SOLUTION, FLEXIBLE USE: The double cylinder comes with 4 keys, which allows easy access to family members or trusted people. Precision manufactured keys ensure smooth operation without blocking or obstruction. The robust structure of the cylinder ensures long-lasting reliability in everyday use.