Package Included: 1 * Rope Propeller 1. When you are done using it, just neatly wrap the string around the body. With its compact design, ZipString can fit in your pocket to go with you anywhere. 2. Since ZipString emulates your movement, there are endless possibilities. You will be amazed at what you can immediately do with a short string. As your skill improves, you will be able to use longer strings. 3. The string gently glides and follows the contours of objects it interacts with. As it does so, it emulates shapes and patterns that are mesmerizing. With its gentle flow, that you can even deflect the stream with your hand and barely feel it. Material: plastic Size: 4*4*12cm Battery: 2 x AA battery(not included) Color/Style: As the picture shown Weight: 110g