Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Such high hopes

I bought this for my 3 year old son, but unfortunately he couldn't ride it until months before he turned 5 (and he's in the 75th percentile for height). He rode it all morning in a parade on the 4th if July and later when we went swimming, he had 3 bruises on his back. We could NOT figure out why...until we realized they were in the spots where the hard plastic screws together on the back of the seat. He had complained a little that morning, but we didn't realize what was happening. We bought him a bike that afternoon and threw the big wheel in the recycling- no way I want another child using this product!