Kryptonite Messenger Bicycle Chain Lock with Moly Bike Padlock (100cm) FlexibleHIGH SECURITYfor "tricky to secure your bike" scenarios 9.5mm four-sided3T MANGANESE STEELchain links Retained shackle side allows chain to be easily carried around waist Moly padlock includes hardenedDOUBLE DEADBOLTproviding additional security against twist attacks WEATHER-RESISTANTnylon sleeve prevents scratches to painted finishes 2 ERGONOMIC KEYSwith coiled wrist key chains Key Safe Program Product dimensions: 3'3" (100cm) chain length Product weight: 6.26 lbs (2.84kgs) Flexible high security for "tricky to secure your bike" scenarios 9.5mm four-sided 3t manganese steel chain links Retained shackle side allows chain to be easily carried around waist Moly padlock includes hardened double deadbolt providing additional security against twist attacks Weather-resistant nylon sleeve prevents scratches to painted finishes 2 ergonomic keys with coiled wrist key chains Key Safe Program