Review on Heelys Kids' Voyager Tennis Shoe - Unisex, Ideal for Active Children by Nguyen Taylor

I bought size 4 for my grandson for Christmas. It turned out to be too small so I decided to go back and buy a size 5. Well I didn't realize I couldn't exchange it because it would cost an additional $48. Very disappointed with Revain and Heelys. How come a size 3, 6 or 9 can be bought cheaper than a size 5? I just wanted to get him these shoes for Christmas that were on his wish list. I will no longer buy Heelys products.