1.Adjustable size: the size of the inline skates for children can be adjusted, and the size can be adjusted according to the growth of the child, and it can be used for a long time. There are 3 sizes: EU28 33 (children), EU34 37 (teenagers), EU38 42 (adult). 2.8 luminous wheels: each of our skates is equipped with 4 light wheels. When the wheels rotate, the wheels automatically emit brilliant lights. They have builtin magnetic cores and do not need to be charged. At night, the shiny wheels bring you more fun and . 3.High performance: the inline roller skates are equipped with 82A PU wheels, which are nonslip, wearresistant and highly elastic. Equipped with ABEC7 bearings, high speed noiselessness, shock absorption and stability, which provide you with a fast and smooth sliding experience. 4.Breathable and comfortable: the breathable mesh and soft pearl net can protect your feet, avoid hot feet, avoid sweating and provide breathable comfort. and the PP toe cap has the properties of anticollision and compression, which are strong and durable.