The Rolling Thunder line of bowling bags are Storm's top of the line bags. This 6 ball roller is no different and boast tons of high performance features from 3 high tech wheels to a Dual Frame Locking Telescopic Handle With Grip Release and everything in between. Storm thought of everything with this bag including a detachable 2 ball tote that can be used when you just don't need 6 bowling balls. What more could you want?