Posting this for my 4 year old boy... he really loves this.
Easy to install, just follow the instructions *hint, you just drill the screws into the pre made holes on the yellow receiver to the car. Everything aligns right up and there is absolutely no guessing.
The wheel was ok to put on. follow the instructions on this one and you will be ok.
LOVE THIS! My 4 year old son loves this trailer. Best gift ever! He pulls his 2 year old brother around in it. Durable and so much fun to put stuff in. The only hard part is that it is tricky for him to hook and unhook the trailer as you have to lift up the trailer to hook it in and then twist it to lock in place.
My toddlers love this. Make sure you read the directions carefully, it's a bit of a pain to put together and you have to drill holes in the car, so 4 stars. But it's solid, my 15 month old and 3 year old like riding in it.