The maximum length of the blade is 88 cm. The minimum width of the blade, which must be at the button, is 4 mm; its thickness, also immedi-atelybelow the button, must be at least 1.2 mm. The end of the blade must be folded over onto itself or be fashioned in one piece to form a button which, viewed end on, must have a square or rectangular section of 4 mm minimum and 6 mm maximum. The maxi-mum dimension must be not more than 3 mm from the end of the blade. The end of the blade may also be formed by a solid button which must have the same section as the button which is folded over (Figure 12,p. 93).If the blade has a curve, it must be a distinct curve which must be continu-ous,and the deflection must be less than 4 cm. Blades with sharply bent extremities or which curve in the direction of the cutting edge are forbid-den. The saber blade must have a flexibility equivalent to a bend of minimum 7cm and maximum 12 cm measured in the following way.1. The blade is fixed horizontally at a point 70 cm from the tip of the blade.2. A 200 g weight is hung 1 cm from the tip.3. The curve is measured at the tip of the blade between the weighted and unweighted positions (see Figures 12 and 13, pp. 93, 94).