1. Heat treated steel vertical drill-resistant pins on both side of cylinder
2. Mushroom counter pins resistant to attack.
3. 6 rounded-head picking proof combination pins.
4. Owner key: 5 pcs
5. Owner card: As a indication of the key duplication and quality guarantee
6. Service key system: 1pcs, Once the owner's key be used,the service key will be disabled.
7.Stiffening device: Central breaking-proof, anti-snap, body reinforcement
8.Master Key or Key Alike are available
9.Finish: 01-Brass polished with varnish