- Robust Security : Protect your valuables with our heavy-duty bicycle chain lock. This lock features a 105 cm (34 in) long chain, with a 20 mm diameter and 5 mm width, providing ample length for secure connections. - Durable Materials : Constructed from high-quality steel and a copper lock cylinder, this chain lock is designed for maximum durability and corrosion resistance, ensuring it withstands the test of time. - Scratch-Resistant Design : The chain is covered in a protective acrylic fabric that prevents scratches and abrasions, safeguarding your bike's frame while extending the life of the lock. - Advanced Resistance : Engineered to resist drilling and cutting, the unbreakable cylinder can endure harsh weather conditions and deter even the most determined thieves. - Versatile Applications : This theft-resistant lock is not limited to bicycles. It is also ideal for securing e-bikes, scooters, lawn mowers, doors, fences, and sports equipment, making it a versatile choice for various needs. - Included Accessories : The package includes two keys, ensuring you always have a spare on hand, and enhancing the convenience of use. Choose our heavy-duty bicycle chain lock for reliable security and peace of mind in protecting your valuable items.