Aluminum framed 100 percent polycarbonate</br>Four?? dual spinner wheels roll over the roughest terrain with ease</br>Fully-lined interiors with zippered compartment and cross-straps to minimize shifting of contents</br>Ultra-protective security frame features an integrated tsa combination lock that provides peace of mind when checking cases through security</br>21x14x9</br></br>Product Description</br></br>A bold fusion of stylish construction and durability. Aluminum framed?? 100% polycarbonate construction creates a combination of strength?? flexibility?? and capacity. The lightweight performance is further enhanced with the near effortless mobility of sleek?? smooth-rolling dual spinner wheels</br><br/>http://www.amazon.com/gp/product/B01409L0U0