Fisher-Price Big Action Boulder Blast Quarry Big Action Boulder Blast Quarry provides fun "exploding" action just like a real demolition area Comes with a Bulldozer vehicle to help load boulders into the pit area at the top of the site Once the pit's all loaded up, push the dynamite blaster and get fun "exploding" boulder action Features an EZ Guide Ramp which allows RC Vehicles (sold separately) to be easily aligned to the track Kids will have loads of fun with this set, loading and "exploding" the boulder and discovering how to make things happen