Giant's Surelock Flex Coil 15 is simple but effective combination lock with 4 fluorescent digits - giving up to 10,000 variations.  A 15mm heavy duty flex cable provides good resistance from sawing attacks.  The cable itself is also covered in tough vinyl so your bike frame doesn't get scratched.A useful addition is the quick release mounting bracket allowing you to fix the lock to your frame as you ride rather than store in your pocket.Weight - 800g (includes keys & fittings)Features:15mm Heavy Duty flexible cableLock: Resettable 4 digit comboTough vinyl coverQr mounting bracket