Just wanted to mention that this extreme coaster is well made and sturdy! Make sure you have a drill so you can easily put the screws in. Couldn't imagine having to use a screw driver as my stand alone tool! The day before we put this together, I assembled the skyward summitt and it was a nightmare (holes not lining up, holes not pre-drilled, etc). I was really not looking forward to this thing after reading some of the reviews.  Was done in about 40 minutes and was concerned on how smoothly this went. LoL! Kids love it and look forward to having this around for many years!