It consists of several components: the classic 6-millimetre-thick steel chain, the gooseneck, the foam shell and a plastic fibre coating. The steel chain – like the housing and load-bearing parts of the locking mechanism – is made of specially hardened steel. Behind the term "gooseneck" are two intertwined metal spiral springs, which ensure the dimensional stability of the lock. This allows the lock to be bent into the desired shape and wrapped tightly around the bicycle frame. The foam ensures the unmistakable feel of the lock and a rattle-free transport. The durable, highly flexible sheathing made of plastic fibres offers very high protection against abrasion and scratches. Thanks to the dimensional stability and the foam, the lock can be transported very well. It does not rattle on the bicycle frame and remains flexible at the same time.