Ger ready for rock crushing, boulder chomping, stone slamming rock machines. These crawlers come in different sizes for different tasks at hand. Need to crawl around in the house? We have the small scale machines. Want to bring the truck outdoors and crawl boulders? The 1/5 scale Madstone powerhouse is where it is at. Whether its crawling in your garden or out in the wilderness these machines bring it hard. Ready to run out of the box and 4 wheel steering capable makes these machines a joy to drive for leisure or competition.