Approximate Cutting Edge Size:
 
Width: 6 cm  Height: 3 cm (size small)
Width: 8 cm  Height: 5 cm (size medium)
Width: 11 cm  Height: 7 cm (size large)
Width: 13 cm  Height: 9 cm (size X large)
Width: 15 cm  Height: 11 cm (size XX large)