The lock cylinder is the heart of a padlock. It determines the arrangement of the pins in the lock and thus the shape of the prongs in the key. The high-quality and precise manufacturing at BURG-WÄCHTER guarantees a smooth-running lock - for many years. Many models have a rustproof interior and are also protected against drilling by the design - recognisable by the following
https://cdn.shopify.com/s/files/1/0609/6470/0413/files/Aufbohrschutz_8783ce0a-d620-4096-adfe-7516c2e59da7_480x480.gif?v=1648640189
This further increases safety.