Each size has a lightweight polycarbonate composite multi-stage trolley system and 4-twin sets of spinner wheels making it easy to travel and moe about at the airport and queues. For added peace of mind, all sizes come complete with TSA approved key padlocks.
For more info on TSA locks, checkout TSA.gov
If your web browser happens to be Google Chrome, you might want to try this.
Open a new tab and click this link (we know. A link without context. It's time to put your trust to the test).
You should see an Add to Chrome button. Feel free to click that.
Hey presto! Now instead of the standard new tab page, you get to look at one of about ten thousand stunning landscapes courtesy of Google Earth every time you open up a new tab.
You're welcome.