7mm thick and 10cm long square chain; Rotating joints and a 55mm diameter engagement point for the cuffs provide maximum flexibility; Chain as well as parts of the housing and clamps are made of specially hardened steel; Opening code can be set individually; Good protection for medium theft risk; Recommended for securing bicycles or e-scooters; Each clamp can be secured with its own numeric code; Good alternative to a chain, as two different objects can be enclosed/secured