This is a great set for any little farmer, whether they are just starting their toy farm or adding to it! This set includes a tractor, a truck, a trailer, four bales (2 round and 2 square) and 6 crates. The set is made of plastic and features rolling wheels on the tractor, truck, and trailer. The tractor and trailer hooked together, measure approximately 10.5"L x 2.75"W x 3"H. This set is made of plastic, by New Ray, and is recommended for ages 5+ years.