Package contents - One curved ruler with a maximum size of 60 cm. It can be folded into any shape you need for professional and geometric drawing. Key benefits and features - Flexible, shape-retaining design: fold the ruler into the desired curve and it will hold that shape for accurate measurements and repeated use. - Durable construction: outer layer made of PVC is long-lasting and resistant to fading or discoloration; internal metal strips provide a secure grip. - Double-sided for versatility: one side features imperial measurements and the other side metric measurements, with clear scales for precise readings. - Soft, elastic and smooth: easy to manipulate into complex curves without tearing or deforming, suitable for measuring curved seams and designing curved patterns. - Practical and gift-worthy: a handy tool for painters, designers, and engineers, useful as a thoughtful gift or professional aid. Use scenarios - Fashion and pattern drafting: shape armholes, necklines, and curved seams, then trace accurate curves onto fabric or pattern paper. - Graphic design and engineering sketches: create smooth, precise curves for product designs, architectural templates, or technical drawings. - DIY projects and crafts: craft curved templates for woodworking, upholstery, or art projects where consistent curves are needed.