Features: brand new and high quality GOLDEN RATIO FINDER. This clear ruler is especially designed for accurate drawing, creating golden section, architectural drawing, etc. HIGH QUALITY. Premium acrylic ruler, anti-break, wear resistant, waterproof, built to last. DIMENSION DETAIL. Total size : 2.75 x 1.69 inches. Thickness in 2mm (0.08''). Compact and portable. EASY TO USE. Clearly golden ratio linens printed on the transparent ruler, effortlessly view. WIDE APPLICATION. for Ideal for designers, architects, artist, engineers, drafting, drawing, painting, designing, etc. Specifications: Material: Plastic Color: Transparent Thickness: Approx. 2mm/0.08in Length: Approx. 7x4.3cm/2.75x1.69in Weight: Approx. 80g Package Includes: 1 Pc Golden Ratio Ruler note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!