This core trekrozet is specially designed for locking. This rosette has been approved by SKG3, which means that it is an extra heavy burglar resistant product. You can apply this rosette to lock locks with a fixed or loose tail cylinder of Lips and Nemef, among others. And in the case of renovation, assembly is extra easy. You can then use the existing hole pattern in the door. Product: SKG3 safety rosette padlock core trekking protection F1 alu . . Condition: new