The AXA Linq Pro 100 is an extra strong lock as the links continue into the fastener. This high quality chain provides extra security for your bike. The symmetrical key allows it to be put into the lock of the flexible fastening mechanism in any way. The last link of the chain is fixed in the padlock by a 'deadbolt’ for an extra strong connection. The rubber grips on the padlock provide extra grip when operating your lock. For misplaced keys use the international online key service - order your key at axabikesecurity.com and your replacement key will be delivered within a few days. You will need to take note of your key number.