• Heavy-duty 12mm square link chain, fitted with durable nylon sleeve for avoiding accidental scratching and damage to the bike.• Features extra-long 12mm thick shrouded shackle with anti-drill, anti-saw and anti-pick protection on the locking cylinder.• Supplied with two keys.Heavy-duty 12mm square link chain, fitted with durable nylon sleeve for avoiding accidental scratching and damage to the bike. Features extra-long 12mm thick shrouded shackle with anti-drill, anti-saw and anti-pick protection on the locking cylinder. Supplied with two keys.• Heavy-duty 12mm square link chain, fitted with durable nylon sleeve for avoiding accidental scratching and damage to the bike. • Features extra-long 12mm thick shrouded shackle with anti-drill, anti-saw and anti-pick protection on the locking cylinder. • Supplied with two keys. • Model No. CL129DLTechnical Specification:Chain Size: 12 x 12 x 900mmNett Weight: 3.12kgDimensions: Length: 117mm x Height: 50mmWeight: 3.156KgWarranty: 1 year