Sizes: Small 31-34 Medium 35-38 Large 39-42for basic featuresMade of premium quality material to ensure durability and long term useDesigned for customized workouts and progressive build upeasy to use♥【Special Design】The roller skates on the mesh surface make the inline skates breathable and comfortable, and prevent sweat. Stylish and cool, stylish design brings you wonderful roller skating experience. Triple Protection: Buckle, Strong Velcro, Shoe Cord ♥【Adjustable Size】As baby's feet get bigger, the shoes will fit very well. Feel more comfortable than ever! The shoe size can be adjusted via BUSH at the push of a button. ♥【EXCELLENT PERFORMANCE】Enjoy high quality bearings, aluminum frame and rubber brakes for a smooth driving experience. Protection includes laces, 45-degree straps, and high-strength buckles to ensure secure ankle support and protection along the way. ♥【Perfect Gift】Inline skates are popular with children of all ages. It facilitates burning calories