- High security construction: The bicycle lock uses a thickened alloy steel body with a 5.7 mm shackle, delivering strong cut resistance and drill resistance to deter theft and chain damage. - Resettable 5-digit combination: The lock head is made of high temperature resistant ABS and uses a 5-digit combination. The initial password is 00000, and you can easily reset the combination as needed. - Wear-resistant double layer protection: A high-quality nylon fabric cover provides scratch resistance, dust protection, and wear resistance. It guards the chain, prevents rust and scratches, and helps extend the lock’s service life. - 90 cm length for versatility: The extended lock body provides 90 cm of reach, long enough to secure bicycles, electric vehicles, or other items to fixed objects. - Practical use scenarios: - Park a bicycle to a street rack or pole in urban areas to deter theft while you are away. - Secure an electric scooter or e-bike at home, campus, or parking areas to protect against theft. - Lock other small equipment or valuables to a fixed object when outdoors or unattended.