Compact yet robust, the Abus Ultra 410 Mini U-Lock features a 12mm thick rounded shackle and specially hardened steel construction for top-notch theft protection. The high-quality locking cylinder employs "double locking" to deter tampering, making it an ideal companion for high-end bicycles. The lock's modern design ensures optimum handling, and it excels in the ice spray test. With good protection against medium theft risk, this U-Lock is recommended for securing bikes, and its longer shackle enhances versatility for locking to various fixed objects.