Woodworking ruler - Purpose: Designed for students to use in class or at home; also suitable as an office ruler for general measuring needs. - Benefits: Supports classroom learning and simple woodworking tasks with a reliable straight edge. - Material: Wood. - Function: Easy to handle, lightweight, and provides a clear edge for marking and measuring. Engineering ruler - Purpose: Ideal for schoolwork that requires precise measurements; a must-have straight edge for students. - Benefits: Delivers accurate, straight measurement lines for drawings and calculations. - Function: Straight edge designed to maintain accuracy during marking and layout. - Material: Not specified in the original description; intended for precise measurement tasks. Straight ruler with cork back - Purpose: Suitable for both kids and adults; versatile everyday measuring tool. - Benefits: Stainless steel construction with a cork back offers grip and slip resistance for steady use. - Material: Stainless steel with cork back. - Function: Provides durable, smooth edges and reliable measurement without slipping. Stainless steel straight ruler - Purpose: Wide range of professional applications; suitable for artists, designers, teachers, architects or engineers. - Benefits: Durable stainless steel construction supports precise measurements in technical and creative work. - Function: Professional-grade straight edge suitable for drafting, layouts, and drafting tables. - Material: Stainless steel. Use scenarios - In the classroom or at home: Use the woodworking ruler for geometry, drawing, and basic measurement tasks; the engineering ruler supports precise lines and layouts for school projects. - In a studio or workshop: Use the stainless steel straight ruler with cork back for marking and measuring wood, metal, or other materials with a stable grip. - In professional design or engineering settings: Use the stainless steel straight ruler for drafting, architectural sketches, or technical layouts where accuracy and durability are important.