40' Wood Side Reefer - DAIRYMEN'S LEAGUE - HO Scale. Reefer Cars (also known as a Refrigerator Cars) are box cars that are designed to carry perishable freight at specific temperatures. Wood Refers gained popularity just after the Civil War, and were continued to be used until the mid-1950 when lighter weight steel refers with mechanical refrigeration began their service. Bachmann's Wood Side Reefer Cars are modeled after a 40' Wood Reefer Car design, and come in a variety of colors and road names. Each car is fully assembled and features; Highly Detailed Painted Bodies with Precision Graphics (where applicable), Blackened Machined Metal Wheels with RP 25 Contours, Magnetically Operated E-Z Mate Couplers, Non-magnetic Blackened Brass Axles with Needle-point Bearings, Celcon Trucks, and Added Weight for Optimum Tracking Performance.