This Bachmann Silver Series(R) 4-Wheel Wood Bobber Caboose is based on steam-era wooden cabooses. It features a detailed injection-molded body with realistic decoration, metal wheels and E-Z Mate(R) magnetic knuckle couplers.WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov