AXA ULC 130 Plug-in Chain Lock Description: The AXA ULC 130 Plug-In Chain Lock increases the security of AXA Ring locks, allowing users to tether bikes equipped with AXA Ring Locks to static objects, adding a further buffer to security provided by AXA Ring Locks including AXA Solid Plus, Defender, Victory, Block XXL, Imenso Large and X Large frame locks, as well as some other brand frame locks. Features: Chain Lock addition for AXA Ring Locks and other branded Ring Locks Polyester sleeve protects chain from damaging bicycle frame and other objects