They are made of a very heavy plastic. They are made to take a beating and I love that they can take the weather too. I hate trying to collect all our toys to bring them in, as my son is in the sandbox just about every day. The Cat Tough Tracks can stay right out in the rain and unlike metal construction vehicles they do not rust! Besides getting dirty, they look and perform like new! The nice plastic is great for younger chidren too, ages 2 and up. There are no sharp pieces to worry about getting injured on if they fall with them.
For more information on these fun toys check out Toy State on facebook and Twitter.
disclosure: I received a Cat Tough Tracks Dump Truck and hardhat from Toy State as a TeamMom member.