Accurate Right Angles & Clean Seam Intersections for Pattern Drafting The Sure Fit Designs Curved T-Square is a clear acrylic patternmaking tool built to help you establish precise right angles, square seam intersections, and refine pattern details with confidence. Its compact 7" x 2¼" size makes it ideal for the detailed areas where accuracy matters most. Key Features Establishes accurate 90° angles at seams, hems, and pattern intersections Useful for 3/8" and 1/2" seam allowance work Imperial and metric measurement markings Curved top edge for smooth pattern transitions and shaping Clear acrylic construction for easy alignment over pattern lines Compact and durable — ideal for studio, classroom, and professional use Made in USA Perfect For Squaring hems, cuffs, and center front/back lines Aligning waist and side seam junctions Refining pattern intersections and extensions Sloper development and pattern alterations Sure Fit Designs Dress, Pants, Shirt, and Children's Fitting Pattern Kits