Bigjigs Rail Rail Name Number 6 (Colors Vary) Bigjigs Rail Name Number carriages are a wonderful addition to any wooden rail system Add this colorful numeral 6 to your child's wooden railway collection Measures 2.5'' with removable wooden letter; colors may vary 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