MT5 and MT5+ combine protective elements to create either a double or triple locking mechanism to provide the highest levels of locking security:

Mul-T-Lock's innovative well-honed telescopic pin technology make it highly effective and reliable.

The patented Alpha Spring, a special mobile element located at the tip of the key, engages an additional level of security for enhanced protection.

The plus in MT5+ is a powerful side bar locking mechanism, which interacts with unique horizontal finger pins for extra protection.