When USRA hoppers came due for rebuilding in the 1930s and 1940s, many roads elected to replace the flat sides with panel sides, resulting in a capacity increase of 80 cubic feet. Kits include AB brakes. Decals include lettering for C&O, D&H, Wabash and NHWARNING: 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