3in1 Key System 10pk

Mul-T-Lock patent 3in1 key system 10pk

The 3in1 key system has been designed by Mul-T-Lock to allow users to easily change their key combinations through a simple and speedy process.
The user insert and operates the next key in a sequence of three different keys, and the introduction of each new key invalidates the previous key combination.
When all three key combinations have been used, the cylinder lock can be serviced and re-keyed by an authorised Mul-T-Lock locksmith.