<p>The Simultaneous 3 Piece Set features an ingenious design detail that allows each case in the range to be connected and pulled along as one.</p> <p>Strong straps with quick-release connectors on either side of the cases are housed in zippered pockets. These are used to link one case to another (up to 3 cases can be linked in total) in any size combination that suits your needs.</p> <p>The Carry-Tow link system has been designed with families with young children or babies, business trips, and solo travelers in mind, making travelling through airports, train stations, and around hotels so much easier.</p> <p><span>All 3 matching cases come compete with an in-built TSA-approved combination lock, plus the Medium Plus features a zippered expander section to increase packing capacity by up to 25%.</span></p>