Jenkins extraVars with multiple values

In Jenkins I'm trying to use the same extravar "vm_name" and "vm_static_ip" multiple time with diferent values (for the same playbook), there is any way to achive it?

extraVars   : [

       vm_name: 'NLB1',
       vm_ip: '10.0.0.1',

       vm_name: 'NLB2',
       vm_ip: '10.0.0.2',

]