CISA Astral S (Snap Resistant) cylinders are the ideal solution for anyone who needs a secure cylinder with excellent protective features against cylinder extraction.
+ 40% resistance to extraction and tearing thanks to the Snap Resistant feature, a dual-material steel core.
High resistance to bumping (percussion), thanks to the BKP (Bump Key Power) patented device.
High drill resistance key bitting system in hardened steel.