Package contents - 1 x protractor and 2-in-1 ruler (black and red), 360° rotating angle ruler, accuracy ±0.5° - Straight ruler: total length 400 mm (15.7 inches), folded length 200 mm (7.9 inches), accuracy ±1 mm - English user manual 2-in-1 angle linear - High quality fiberglass nylon construction, widened and thickened for durability - Wear-resistant, heat resistant, stable, high strength - Lightweight and portable; quick and efficient to use - Meets a variety of measurement needs Locking function - Protractor features an enlarged knob at one end with clear lock and release instructions - Tighten during measurement to prevent angle drift - User-friendly design with comfortable, non-slip handling Large display and clear scales - Digital display area approximately 3.4 x 1.6 cm for easy reading - Large, intuitive readings with dual scale on the ruler (mm and inches) - Clear marks for accurate data interpretation in every measurement Key benefits - Provides precise angle measurement and reliable angle transfer with a locking mechanism - Combines a 360° rotating protractor and a straight ruler in one tool - Durable, lightweight, and portable for on-site and workshop use - Easy to read thanks to the large digital display and dual mm/inch scales Use scenarios - Carpentry and woodworking: transfer and reproduce bevel angles for cuts, joints, and fittings - Metalworking and construction: measure and copy angles from templates, layout lines on curved or flat surfaces - Tile setting and interior finishing: layout reference angles and transfer measurements to materials for accurate installations Specifications recap - Protractor accuracy: ±0.5° - Straight ruler length: 400 mm (15.7 in); folded length: 200 mm (7.9 in) - Straight ruler accuracy: ±1 mm - Materials: fiberglass nylon (2-in-1 ruler) - Display: digital, 3.4 x 1.6 cm (approx) - Includes: English user manual