European cylinders are safety mechanisms that are added to locks as security enhancements.

The mechanism is deployed by means of cut keys with teeth-like cuts on the sides or holes. The simple introduction of cut key in the cylinder automatically and effortlessly spreads the pins.

European cylinders with pumps are also included in the "Picard Vigie European cylinder technology".

By its conception and construction, trunnion is inseparable and fixed to the case rendering it in invulnerable to most destructive attempts of intrusion.

The dynamic systems of Picard and Vak pump units involve the use of a single spring instead of small individual springs for each disc tumbler. .

The power of the spring provides two major advantages: it makes picking the lock difficult and prevents the disc tumblers or tumblers tumblers from becoming blocked in an open position by the introduction of sticky substances.

the "bloc porte" Picard and Vak pump lock cylinders are equipped with many safety mechanisms (pre-disc tumblers, false notches, false wards in arbitrary positions, etc.) representing decoys or labyrinths for false solutions extending the time required to gain entry that are particularly dissuasive!