Size options: 30 cm, 40 cm, 50 cm, 60 cm, 75 cm, 90 cm Flexible curve ruler for drawing a wide range of curves with smooth radii. Benefits: - Enables precise curve work in woodworking, pattern drafting, and design projects. - Helps save time and improve accuracy when laying out curved components. Key attributes: - Function: flexible curve construction for varied shapes. - Size: multiple length options to fit different tasks. - Application: suitable for dressmakers, draftsmen, stylists, architects, and craft enthusiasts. 2-3 practical use scenarios: - Draft curved components for furniture, cabinetry, and other woodworking layouts. - Create garment pattern curves such as waistlines, necklines, and sleeve caps. - Sketch architectural or landscape curves in site plans and design details. Gift idea: - A practical tool for professionals and hobbyists in design, drafting, and construction.