Draft Accurate 5/8" Seam Allowances & Smooth Pattern Curves The Sure Fit Designs Designing Stylus is a specialized patternmaking tool built to help you draft precise 5/8" seam allowances and shape the smooth curves essential to custom-fit garments — armholes, necklines, hip curves, crotch curves, side seams, and style lines. One versatile tool replaces a collection of generic rulers and curves, giving you the accuracy and control to move from measurements to clean, usable pattern lines with confidence. What You Can Do With It Draft and mark 5/8" seam allowances accurately Shape smooth armholes, necklines, and sleeve curves Create balanced waist, hip, and crotch curves Blend and true side seams and princess lines Refine fitting adjustments and pattern alterations Support pattern grading and sloper development Specifications Dimensions: 20.5" x 9" | Material: High-quality flexible plastic | Made in USA Required for All Sure Fit Designs Fitting Pattern Kits