3Pcs Flexible Curve Ruler 16" Metric Inch Double-Sided Graduated Ruler

This flexible ruler is made of durable soft rubber that is flexible and easy to bend into various shapes. It contains a flexible metal core for shape retention and resists spring back when bent. This double-sided drafting ruler features both metric and inch units for convenient measurement and drawing non-circular free-form curves. Precision ink slots on both sides allow for easy marking and writing. The blue and white color scheme ensures clear, eye-catching markings and is easy to read. Double-sided measuring stick is suitable for drafting, engineering, construction, surveying, garment making, and crafting. Good for professionals of woodworking, handmade projects, quilting, and technical drawing. To maintain measurement accuracy, store the ruler flat and out of direct sunlight. The ruler is designed for measuring and tracing, not for use as a straight ruler. Due to its low precision and uneven distribution, there will be a certain error.