Hardened 20 mm square parabola shackle with 7mm plastic coating. Shackle and body are better protected against brutal saw attacks with angle grinders due to a special carbide material mixture. Double locking of the shackle in the lock body. The shackle, the housing, and load-bearing parts of the locking mechanism are made from specially hardened steel. ABUS Power Cell technology offers maximum protection against impact and access attacks. X-Plus cylinder for extremely high protection against manipulations, e.g., picking.