Please insert charging cable gently, may break the charging interface."Looking for presents? Tuko LED shoes have been considered as a birthday present, Christmas gifts to Kids and classmates. HOW TO USE 1.Press the orange button to turn on the LED lights and the lights change among 7-changing colors when you press the button every time keep pressing for 2-3 sconds again to turn off, press. 2.Slide the black window to another side, hold the shoes tight and press the white button hard on the heel with your thumb, the wheel pops out. 3.Hide the wheel by pressing the white button, at the same time push the wheel back and release the white button to lock, and then slide the black window back. 4.Charge the shoes with cellphone USB adaptor, connect the adaptor with the cable attached. then connect the cable to the shoes on the white button, the LED flashing means charging, usually takes 2-3 hours to get full charged while the LED lights turn off automatically and it lighting 6-8 hours. 5.Wash the shoes with soft wet fabric. Specifications: Material: Outer Material: PU Leather Inner Material: Mesh Closure: Velcro Material Composition: 40% PU Leather, 30% RUBBER Notice: Must check fit size above and compare with your actual foot length before ordering. Beginner please be cautious when you are skating, protected with knee-pad and helmet is necessary(not included) For safety, Kids should be accompanied by an adult when using this shoes. shoes can not be washed or step into water. Purchase bigger size is better than small size if you are not sure. "