kryptolok standard 12.7mm u-lock bicycle lock with flexframe-u bracket & kryptoflex 410 10mm looped bike security cable

12.7mm hardended performance steel shackle resists hand tools, bolt cutters, and leverage attacks; 10mm steel looped cable for additional security key safe program; will ship your first 2 keys for globally, in the event you lose them. includes 2 stainless steel keys, with ergonomic design to reduce the amount of torque, and keep them from bending or breaking..syi