Kryptonite KryptoLok Series-2 955 Mini Integrated Chain Bicycle Lock Bike Lock with Transit Transport-R Chain Frame Bag Combo pack offersLIGHTWEIGHT SECURITYand safe, convenient transport 9.5mm four-sided chain links made from3T MANGANESE STEEL New design secures chain directly to hardened deadbolt - no "weak" link in the chain HIGH SECURITY DISC-STYLE CYLINDER TRANSPORT R-BAGmade of reinforced nylon for long lasting use 5 ATTACHMENT STRAPSincluded; 4 standard length and one longer length for head tube attachment High visibility piping glows in the dark 2 ERGONOMIC "I" KEYS TOGETHER Key Safe Program BagApprox. - 10 3/4" x 5" x 2 3/4" (27cm x 13cm x 7cm) Combo pack offers lightweight security and safe, convenient transport 9.5mm four-sided chain links made from 3t manganese steel New design secures chain directly to hardened deadbolt - no "weak" link in the chain New Duocore patent-pending hybrid cylinder provides increased security Transport-R Bag made of reinforced nylon for long lasting use 5 attachment straps included; 4 standard length and one longer length for head tube attachment High visibility piping glows in the dark 2 ergonomic "I" keys included Key Safe Program