Flashing Skatewheel features as following: 1.A easy-taking because of a small and lightweight 2.Easy-learning, skate freely and turns flexibly 3.A flashing function while skating through a magetic-generating device 4.With a adjusting design,it can be easy and fast to install and take-down on any sized flattie 5.With a safety consideration, a rear brake is designed to stop your skating 6.A safety rear-button is designed to balance the skater, and easily control the braking 7.Multi-functional enjoyment,such as skating, circumgyrating and so on 8.High-quality materials are adopted to produce this product! carton size:52X40X45CM packing:40units/carton gross weight:39kgs net weight:37kgs mini order quantity:2000units Conveyance:12000units/20''FCL 24000units/40''FCL 28000units/40''HQ Warning: protective appliance is necessary