- Strong Quality Material.
- Against Versatile Key: The Internal construction of the lock has been innovated and modified from the usual ball to special multiple layers which prevent it from being unlocked by a versatile key.
- Against Saw: Hardened steel shackles cannot be cut by a saw.
- Avoid being prized: The Lock contains a very strong hard Arstreel ball to pin the shackle and so it cannot be prized by force.
- Against Drill: Hard lock shaft cover guards against Drill.