3KSplus is the most resistant system among mechanical locking systems. With the patented, springless curve technology, 3KSplus is suitable for the toughest conditions. The distinctive tip of the reversible key offers increased comfort when inserting. And of course, 3KSplus also has a feature unique to EVVA: The overlapping curve millings guarantee optimal security.
for locking systems with a highly complex structure
modular version (SYMO)
patent protection until 2025