Bought for a friend and she just loves them and easy to put on. They are very similar, but also not, and its a really welcome ergo mouse for larger handed players. A downside with my previous headphones was that they also had volume and track control, but it was all one large, dynamic button which could lead to inadvertently pausing or even skipping a song when you just want to make it louder or quieter. Maybe I misunderstood the size, maybe its not toddler size aged 4-6 but toddler shoe size 4-6 and if so, it needs to be clearer. I love these hooks . Despite that, I still highly recommend this for use on a bicycle, or even as a portable speaker. I had to move up one size from my previous Croc purchase. It is after all. Although I didnt get them on time, they was in perfect shape. 5-9 & I ordered a size 9 & it was at least an inch too large at the toes.