You should login rundex.com at first,then,enter your requirement of free sample and other info;Rundex.com verify your application info,and rundex.com entitle to accept your application or not;If approved by rundex.com,it only could support free sample,applicant need pay for any courier,other charge or expenses,and,rundex.com and Rundex Electronic couldn't bear any legal liability related to the sample. As submit your free sample application,it means you agree to abide by the conditions specified above and terms of rundex.com.