Very good protection against high theft risk. Recommended for securing valuable items or bicycles. The larger the length of the shackle, the easier it is to attach to a fixed object. The patented square parabolic shackle is made of hardened steel. Double locking of the shackle in the lock body. The Abus Power Cell technology is also patented and offers the highest protection against impact and tampering. The shackle, housing, and load-bearing parts of the locking mechanism are made of specially hardened steel. The Abus X Plus cylinder provides extremely high protection against manipulation, such as picking. Two keys are included, one of which is an LED light key. Automatic cover for the keyhole to protect against dirt and corrosion.