Adjustable skates fits US shoe youth size Y12.5 - 2.5. Length in CM is 19.1 - 21.4. The TronX Adjustable Roller Hockey Skates are perfect for the young roller hockey player who is still growing. It features a unique dual toe-tap adjustment system that allows the internal toe cap to lock into one of four sizes. To change sizes, simply rotate the tool-less adjustment dial on the side of the skate to extend or retract the internal toe cap. (4) different sizes of footbeds are included to be interchanged when a different size is selected, guaranteeing a great fit every time. 68mm Multi-Surface wheels and equipped with ABEC 5 bearings.