The Performa gear lock is the perfect solution for aluminium doors, which tend to change shape due to the materials they are made of, their size and other external factors. This means that correctly locking the door becomes more difficult. The force required to correctly align the door when closing it is significantly reduced thanks to the Performa lock's gear mechanism. In this way, the airtight closure of the door is ensured and heat and sound insulation improves, maximising energy savings. The stainless and black painted steel front of the lock make the Performa ideal for modern environments.