60CM (1-2 pairs of shoe holes recommended), 70CM (3 pairs of shoe holes recommended), 80CM (3-4 pairs of shoe holes recommended), 90CM (4 pairs of shoe holes recommended), 100CM (5 pairs of shoe holes recommended), 120CM (recommended 6 pairs of shoe holes), 140CM (recommended 7 pairs of shoe holes), 160CM (8 pairs of shoe holes recommended), 180CM (9 pairs of shoe holes recommended), 200CM (10 pairs of shoe holes recommended)
