From the makers of the original ZipString (as seen on Shark Tank) come Luma with a special light that charge the string causing it to glow in the dark. Take the fun to a dark room, concert, or the backyard at night. ZipString is an incredible toy that allows you to experience the magic of flight right in the palm of your hand. This unique device rapidly propels a loop of string, using the forces of gravity, lift, and drag to balance the string's momentum and make it fly. The string itself is made from lightweight fibers and moves at speeds of up to 30 mi/h, featuring small filaments that create drag as it moves through the air. With Zip String, you can feel the movement of air as the string passes by and watch in amazement as it soars through the air. Simply hold the device and release the string to see it fly, experiencing the thrill of flight anytime, anywhere. For kids of all ages. Recommended for 4 years and above.