Main-crop carrots and large root varieties. Roots must not be less than 20 mm when sizing is by diameter and not less than 50 g when sizing is by weight. Roots classified in the 'Extras' class must not be more than 45 mm when sizing is by diameter and not more than 200 g when sizing is by weight, and the difference in diameter or in weight between the smallest and the largest root in any one package must not be more than 20 mm or 150 g.
