1. 4-in-1 ruler set, including 15 cm ruler, 45-degree set ruler, 60-degree set ruler, and protractor, a set to meet learning needs 2. The corners of the scale are rounded and smooth, making it difficult to scratch the skin. 3. Transparent ruler, clear printing and comfortable hand feel 4. The packaging design is simple and easy to store and carry. 5. Material: PS ?
