One of the many rigorous tests we perform on your packaging is a jog test. This test checks the strength of the handles for bags. First weight is put in the bag. Then the arm of the testing machine jogs up and down for about 125 repetitions. If the sample bag doesn’t rip, then we know the handle is strong enough. It’s just another way we ensure the quality of your packaging. For more information regarding packaging tests feel free to call us at 866-302-0340 or email us at email@example.com.