The French curve ruler with grading rule is an invaluable aid for designing, drafting and grading patterns, and adding seam allowances to block patterns.
The French curve is a very versatile dressmaker's ruler for both the professional designer and the home dressmaker and student. This dressmaker's curve combines neck, armhole, sleeve cap, hipline, waistline, and hemline curves. Plus a grading rule and seam allowance guide.
