The Hybrid Check-In Roller in EspressoThe checked bag that makes people ask where you got your luggagethen ask again at baggage claim. At the center of its design is the BIS Coupling System (patent pending)a built in connection that links any combination of Hybrid rollers into a single, secure rolling unit. Roll your carry on and check in together with one hand, through every terminal, without breaking a sweat (or a nail). Finished with aluminum corner guards, a subtly textured exterior,