I have two girls, a 7 year old and a 9 year old.  The pads fit my daughters fairly well, but I cannot vouch for their protectiveness.  I hate to leave a review like this, but my girls just have not had enough accidents on their scooters to properly evaluate the effectiveness of these pads.  They don't wear them when they are on their bikes, only when they use their motorized scooters.  I am only giving them 4 stars because they don't fit my 7 year old daughter as well as my 9 year old.