Bigjigs Rail BJT406 Crates Wagon Bigjigs Rail Crates Wagon is a wonderful addition to your child's wooden railway system This 3-piece freight car set includes 2 detachable wooden crates that can be lifted with the Bigjigs magnetic crane (sold separately) Measures 3.5 inches; made of responsibly sourced materials Most wooden railway sets are compatible with Bigjigs Rail, making Bigjigs the perfect choice for starting or extending your collection Bigjigs Rail is suitable for children ages 3 and over, and conforms to ASTM and CPSIA safety standards