Smuggie Coffee Lid for Dwell - The Smuggie uses a stacking spiral made of silicon rubber steps that are connected to each other and pivot from a stationary central location to open and close. Using the provided stirrer, retract the lid to pour the coffee and any cream or sugar in; then rotating the stirrer to the right, lock it into place and be on your way. When you get to your destination, you will see that not only is all your coffee still inside, but upon opening, has also just been freshly stirred for you as well.