1)2 in 1 function, you can wear it as sport shoes, and also can enjoy the fun of skating. 2)It's the appearance of fashion sport shoes. With the automatic button in theshoe heels, you can have the wheels pop out from the sole easily bypressing this button. 3)Cast PU wheels, smoothly and durable. 4)Suitable for children's recreation and sports.5)Variety of styles and models available. Inner Packing: color box Qty/ctn: 10prs/ctn Ctn meas.: 56.5x46.5x29cm N.W.: 13kg; G.W.:11kg Qty/ctnr: 4,200prs/20'GP 2) Lead time: 35days(not includes transit time)