we are offering bike lock, bicycle lock, folding lock etc. * unique innovative patented design* 3 mm x 12 links in hardened steel resist attacks* steel links with abs injected cover to prevent damage to bicycles paintwork* circumference: 78 cm; weight: 530g* high security anti-drill disc cylinder against picking* new easy folding design with bracket for convenient storage* 2 keys are supplied with lock* further locking structure is available with additional chain or steel cable* patent patented: usa, eu, germany, china, korea