New Age 1172 Chilltray Dolly, double stack, open frame design, 42-1/2"W x 22-1/2"D, 1000 lbs. capacity, accepts Nestier chill pack containers #18-490E, 18-491E, 18-494E & 18-499E, aluminum construction, 5" platform casters (2) swivel & (2) rigid, NSF