Dynadans Child Easy Slide Adjustable Buckle Tap Shoe for Girls and Boys Maryjane Dance Flat. Simple and elegant Mary Jane style, waterproof, lightweight and relaxing for dancers 0.6 Heel Height: Sound board screwed on taps; Heel measures approximately 0.6 Adjustable Buckle: Upgraded buckle strap with an adjustable slide buckle, easier to put on and take off Synthetic Sole: Flexible outsole easy to bend, with a padded heel collar to help protect Achilles tendon Size Choice: Please measure your feet length first and choose according to the size chart. Boys order 0.5-1 size up.