Features: High-Quality Material: The transparent golden ratio viewer is made of high-quality material, which is break-proof, wear-resistant, waterproof, durable and not easy to break, and can be used for a long time.Exquisite workmanship: This tool has exquisite workmanship and excellent material, which can give you a good use experience.Portable design: This golden scale is small, lightweight and easy to carry. It is about the size of a credit card and is very suitable for carrying in wallets and pockets.Transparent design: The transparent ruler has clear golden ratio printed on it, making it effortless to view.WIDE APPLICATIONS: This transparent golden scale ruler is designed for precise drawing, creating golden sections, architectural drawings, and more. Suitable for designers, architects, artists, engineers, drafting, drawing, painting, design and more. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: acrylic Size: 7* 4.34cm Include:1 x Transparent RectangleGolden Ratio Viewer