I had these put together in five minutes each and they fit my hard to fit cross bars perfectly. So I ordered a 5, and thought the problem was fixed: the shoe had no sliding, and the heel chafe was gone and didnt come up too high, but overall, the shoe length was not long enough (toes squished). These are the things I like and dislike about them. For my husband and I we use a 3 tier in a different brand and I prefer those because you can adjust the shelves just by "snapping" them on and off--plus I think they look nicer (look more expensive). This small camera is so cute at first glance, the child also likes to take pictures, and Christmas is just around the corner , Bought Christmas gifts for him, especially like ?? Me han encantado! 21, and I feel that is WAY overpriced. Eg at home I like to have "hear through" on so that I can converse w my spouse while listening to music, and so I have that "moment" set to "hear -through" set to On. Id be happy with either one of them. Tiene un solo punto negativo y es que no tiene cancelación de ruido activa, la misma se activa mediante el sonido ambiental y es un poco tedioso tener que activar eso cuando tienes una llamada entrante, sin esa función el remitente no escucha nada; ojalá en una próxima versión puedan corregir eso.