A. **Product Features** 1. The transparent golden ratio scale is made of materials with anti - shatter, wear - resistant, and waterproof properties. It is durable and not easily damaged, suitable for long - term use. 2. The tool is crafted precisely and made of good materials, providing a good user experience. 3. The golden ratio scale is compact and lightweight, easy to carry. It is about the size of a credit card, fitting well in a wallet or pocket. 4. The golden ratio is clearly printed on the transparent ruler for easy viewing. 5. The transparent golden ratio scale is designed for accurate drawing, drawing golden section lines, architectural drawing, etc. It is suitable for designers, architects, artists, and engineers, and can be used in fields such as cartography, painting, and design. B. **Precautions** 1. The actual color may vary slightly from the picture due to different lighting effects. 2. A tolerance of 1 - 3 cm is allowed due to manual measurement. C. **Product Information** - Material: Acrylic - Size: 7×4.34 cm D. **Package List** 1 transparent rectangular golden ratio scale