step on® for kids. step on® grom = size m (eu 28.0 - 33.0)there's no quicker way to get your child in and out of the bindings. one step, one click and the little ones are ready! how does it work? with the burton step on® re:flex binding. it offers an intuitive connection between boots and binding and scores points for comfort, performance and foolproof operation. three connection points - two at the toe and one at the heel - provide unparalleled ease, security and board control. the quick-release lever guarantees a fast, easy exit from the board.