Instructions can be confusing and may need help of Ytube. Its so much nicer than what youd get from IKEA! They attached with no issues and dont have issues with sliding around. Volatile sandals are the most comfortable sandals that I own. But I?m happy and don?t mind them being slightly bigger. Will not buy them again. but are good playing shows overall. they come very tightly laced so if you unlace them before you put them on, then they fit pretty good, but need a little breaking it. Great device. My kid seems to enjoy ridding with me so im happy with it.